I know that Tallinn is the Capital of Estonia (correct) I know that Tartu is the Capital of Estonia (correct) Capital know Tallinn the I Estonia is of (uncorrect) Similarly, a formula is well-formed if the arrangement of its symbols is syntactiacally correct. 3+(5x2)=8 (correct) 3+(5x)2=8 (uncorrect) P→ (Q v ¬ R) (correct) P ¬ → (Q v R) (uncorrect) Truth values Propositions are either true or false. Truth and falsity are Truth-values. The truth -value of simple proposition is not the business of propositional logic. The truth-value of compound propositions is determined by propositional logic. It depends on the truth-values of the simple propositions that compose it and the connectives that connect them. Example: Tallinn and Tartu are both nice cities = Tallinn is a nice city and Tartu is a nice city The definitions of connectives are given by their Truth tables. Negation
2018 Boolean Functions and their Cryptographic Criteria * Univeristy of Tartu, Estonia Lomonosov Moscow State University, Russia Contents 1. Introduction ..................................................................................................................................... 3 2. Boolean functions and their representations ................................................................................. 4 2.1 Truth table ............................................................................................................................... 4 2.1.1 Disjunctive normal form .................................................................................................. 4 2.1.2 Conjunctive normal form ......................................................................................
JUHTIMISE ALUSED 2 Ott Alemaa Tallinna Ülikool 2012 Organisatsiooni keskkond SISEKESKKOND: inimesed, organisatsiooni kultuur, juhtimine, seadmed, ehitised, protsessid VÄLISKESKKOND: Muu maailm, mis mõjutab organisatsiooni Organisatsiooni keskkond MIKROKESKKOND: Vahetu keskkond, kus organisatsioon toimib (kliendid, tarnijad, konkurendid) MAKROKESKKOND: kultuur, majandus, seadused, rahvusvahelisus Keskkonna iseloomustus Keerukuse määr: mõjurite arv. Rohkem probleeme, rohkem võimalusi Muutlikkuse määr: kõrge muutlikkus eeldab paindliku organisatsiooni. Ebamäärasus = risk. Info annab tulevikueelise Kriis= oht x võimalus Olukorra muutmise 2 võimalust A) Muuta organisatsiooni B) Püüda muuta keskkonda Tooge näiteid! g Kohanemise strateegiad Info juhtimine: kliendid, ajakirjandus, luure Strateegia muutmine Ühinemised: uued turud või laie...
1 JUHTIMISE ALUSED 2 Ott Alemaa Tallinna Ülikool 2012 2 Organisatsiooni keskkond SISEKESKKOND: inimesed, organisatsiooni kultuur, juhtimine, seadmed, ehitised, protsessid VÄLISKESKKOND: Muu maailm, mis mõjutab organisatsiooni 3 Organisatsiooni keskkond MIKROKESKKOND: Vahetu keskkond, kus organisatsioon toimib (kliendid, tarnijad, konkurendid) MAKROKESKKOND: kultuur, majandus, seadused, rahvusvahelisus 4 5 Keskkonna iseloomustus Keerukuse määr: mõjurite arv. Rohkem probleeme, rohkem võimalusi Muutlikkuse määr: kõrge muutlikkus eeldab paindliku organisatsiooni. Ebamäärasus = risk. Info annab tulevikueelise 2 teed: muuta organisatsiooni või püüda muuta keskkonda Tooge näiteid! 6 Keskkonna iseloomustus Keerukuse määr: mõjurite arv. Rohkem probleeme, rohkem võimalusi Muutlikkuse määr: kõrge muutlikkus eeldab paindliku organisatsiooni. Ebamäärasus = ris...
Falsity A sentence P of SL is truth-functionally false if and only if P is false on every truth-value assignment. Indeterminacy A sentence P of SL is truth-functionally indeterminate if and only if P is neither truth-functionally true nor truth-functionally false. Equivalence Sentences P and Q of SL are truth-functionally equivalent if and only if there is no truth-value assignment on which P and Q have different truth-values. Consistency A set of sentences of SL (sentential logic) is truth-functionally consistent if and only if there is at least one truth-value assignment on which all the members of the set are true. Validity An argument of SL is truth-functionally valid if and only if there is no truth-value assignment on which all the premises are true and the conclusion is false.
Humanistlik paradigma Organismiline lähenemine Abraham Harold Maslow (1908 - 1970) Maslow, A. Motivation and personality. 1954 (1970). Maslow, A. Toward a psychology of being. 1968. Humanistlik psühholoogia American Association of Humanistic Psychology (1962) I Psühholoogia eesmärgid: 1.Uurida inimese kogemust (experiencing person) 2. Uurida loovust, valikuid ja eneseteostust. 3. Uurida isiksuse jaoks olulisi sündmusi. 4. Psühholoogia eesmärk on aidata inimestel oma eneseväärikust tõsta. Eneseteostus (self-actualization) organismiline lähenemine What humans can be, they must be. II Motivatsioon: defitsiidi vajadused (D-needs) olemise vajadused (B-needs) III Vajaduste hierarhia: Vajaduste hierarhia D-needs, B-needs 1. Füsioloogilised vajadused (Physiological needs) söök, vesi, uni, sek...
Humanistlik paradigma Organismiline lähenemine Abraham Harold Maslow (1908 - 1970) Maslow, A. Motivation and personality. 1954 (1970). Maslow, A. Toward a psychology of being. 1968. Humanistlik psühholoogia American Association of Humanistic Psychology (1962) I Psühholoogia eesmärgid: 1.Uurida inimese kogemust (experiencing person) 2. Uurida loovust, valikuid ja eneseteostust. 3. Uurida isiksuse jaoks olulisi sündmusi. 4. Psühholoogia eesmärk on aidata inimestel oma eneseväärikust tõsta. Eneseteostus (self-actualization) organismiline lähenemine What humans can be, they must be. II Motivatsioon: defitsiidi vajadused (D-needs) olemise vajadused (B-needs) III Vajaduste hierarhia: Vajaduste hierarhia D-needs, B-needs 1. Füsioloogilised vajadused (Physiological needs) söök, vesi, uni, sek...
Law-makers breaking the law: torture as a justified interrogation technique? 1 Introduction It was Jeremy Bentham who thought of a famous method to give ethics a rational basis. He was fed up with the penal laws where offenders met corporate punishment and together with Cesario Beccaria he stood up to torture, corporal punishment, and the death penalty. He resisted against irrational moral emotions as the instigation for ethical conduct, saying only reasonable grounds could justify the moral decisions of individuals and legislators. And now his theory of is the one that is known for justifying torture (Verplaetse, 2008). Since 9/11 and the following fight against terrorism it became clear that the Bush administration thought of torture as something justifiable while it goes against all possible agreed upon treaties and conventions. One could indeed possibly think ...
Thus, according to Kripke, Donnellan has failed to show that a sentence containing a definite description can be true even if nothing (or something extraneous) is the description's semantic referent. Even if Kripke is right about the near-miss examples, it is important to hold on to some version of Donnellan's distinction. The distinction is amply illustrated by the original "Smith's murderer" example and others, even if Donnellan is wrong about the meanings and truth-values of the near-miss sentences. Donnellan's paper raises the question of specifying the circum- stances under which one succeeds in referring, by using a description, to the person or thing one intends to refer to, and he has shown that this does not always go by semantic referent. Further, the distinction unmistakably mat- ters to the truth-value of sentences that embed descriptions within clauses of certain kinds. Suppose I were to say:
English literature is one of the oldest literatures in Europe; dates back to the 6th century AD. Oral literature, i.e. not written down, spread from person to person. In 449 AD Anglo-‐Saxon tribes invaded England – beginning of the Anglo-‐Saxon period in English literature. The first form of literature was folklore, carried by scops and gleemen, who sang in alliterative verse (a kind of simple poetry). Prose developed much later. The first form of recorded English literature was the epic Beowulf, which was produced sometime near the end of the 7th and beginning of the 8th century. It has no ...
Edulugude võistlus Success-story competition „Small Town Inhabitants – Educated or Uneducated People“ To begin with, my childhood was quite ordinary, I spent a lot of time in my country home, spending most of my time playing. I have been raised by my mother. As I grew older, I got more and more interested in different things. At one point it occured to me that when I want to be successful in some field, then I really have to educate myself in that filed.When my friends have characterised me then they have mainly mentioned that I am an active person, who has been successful in different fields. I still do not think I am succesful because it is a really complicated definition, but I know that I have succeeded in doing several things. For me the key is my so called success has been that when dealing with a particular thing I have tried to delve into the subject as deep as possible. Firstly, when we are talking about success and asking t...
Ameerika Kirjandus 30.01.13 Naturalism · France, Emile Zola · Put down his theory in 1879: Le Roman Experimental, attempt to explain the development of human society throuch biological laws · Outlook is deterministic, pessimistic, fatalistic (fate or biology) · Man as an animal-clever than other beasts, still explainable within the framework · Man is not a free agent, is govern by something · Unable to determine his own faith · Hereditary · Naturalists tried to apply in fiction the processes of natural sciences · Writers task is to record facts, systems of behaviour, living conditions, never revealing any natural unbiased (completely natural) · Point of view: amoral-outside the category of morality, neither good or bad · Naturalist find it absurd to blame the wicked. These criminals are doing what nature, environment, their unconscious tells them to do. Naturalists do not ...
Education Education is so multifaceted that it is difficult for me to know where to begin discussing it, or how to prioritize the many factors. Relaying my own experience is easy: I had a standard classroom approach, supplemented by inordinate reading. In only the briefest and least memorable instances did I receive any individual tutoring. Education is commonly thought of as the job of schools. Adults cry "educate our children!" Everyone has opinions about the best way to do the job. It is of urgent importance, and all the numerous factors are much studied, debated, and new (or old) ideas continually tested or retested. Some people say "it's as simple as . . . " and then name their pet peeve or passion. My view is not of an education specialist, but of one who loves sharing what I learn, and owes much to educators. Since I don't have an educational theory neatly worked-out, nor an outline of my perceptions, my intent is to addr...
British Literature in the 20th-21st Century REVISION QUESTIONS 1. The Contradictory, diverse, chaotic 20th century. New developments in science and philosophy. The essence and influence of Freudian theory. Contradictory, diverse, chaotic 20th c- simultaneous rejection and invocation of the past. While modernists apotheosized the creative geniuses of the past, they also rejected old poetic forms. Challenge old and established beliefs and more and more people had access to books and education more people went to universities. profound change in morals: · No universal value and perspective on things · Multiple truths, multiple perspectives · Nothing has inherent (kaasasündinud, sisemist) importance · Life lacks purpose Science: Albert Einstein-general theory of relativity had a huge impact on culture as well. Everything is relative. Philosophy:...
ccc_tracy_fm_i-xviii.qxd 7/7/03 3:22 PM Page iii CHANGE YOUR THINKING, CHANGE YOUR LIFE How to Unlock Your Full Potential for Success and Achievement B R I A N T R AC Y JOHN WILEY & SONS, INC. ccc_tracy_fm_i-xviii.qxd 7/7/03 3:22 PM Page i CHANGE YOUR THINKING, CHANGE YOUR LIFE ccc_tracy_fm_i-xviii.qxd 7/7/03 3:22 PM Page ii ccc_tracy_fm_i-xviii.qxd 7/7/03 3:22 PM Page iii CHANGE YOUR THINKING, CHANGE YOUR LIFE How to Unlock Your Full Potential for Success and Achievement B R I A N T R AC Y JOHN WILEY & SONS, INC. ccc_tracy_fm_i-xviii.qxd 7/7/03 3:22 PM Page iv ...
The making of a new nation. The Enlightenment in America. The emergence of the notion of the American Dream. The great Enlighteners: Crèvecoeur, Jefferson, Paine, Franklin. The American Enlightenment is the intellectual thriving period in the United States in the midtolate 18th century (17151789), especially as it relates to American Revolution on the one hand and the European Enlightenment on the other. Influenced by the scientific revolution of the 17th century and the humanist period during the Renaissance, the Enlightenment took scientific reasoning and applied it to human nature, society, and religion. American Enlightenment a gradual but powerful awakening that established the ideals of democracy, liberty, and religious tolerance in the people of America. If there were just one development that directly caused the American Revolution and uplifted the intellectual culture of the continent while it was only a British colony,...
descriptive law (kirjeldav õigus) - laws which simply describe how people or even natural phenomenas usually behave nation (riik) - country with its own goverment citizen (kodanik) - person native of a country; realationship between country and a person stranger (välismaalne) - person who is unfamiliar, from another country penalty (karistus) - punishment fixed by law, as for a crime or from any soical groups goverment (valitsus) - organization which controlls a stre or community System of Courts (kohtusüsteem) - organization applying law in the name of states to commit a crime (kuritegu läbi viima) - breaking a law, usually given out by the goverment fine (trahv) - certain sum of money person pays for breaking a law corruption (korruptsioon) - dishonest or unethincal conduct by a person entrusted with a position of authority suspension (kõrvaldamine) - form of punisment that people recieve for violating rules and regulations Civil Acti...
ENGLISH LITERATURE Ancient Britain Lived on the British Isles in the 1st millenium. They most probably came from Eastern Europe and belonged to the Celtic race and also spoke Celtic. They were primitive hunters- gatherers, farmers. Some Celtic words are still used in modern English, however they are used mostly in place names. For example: · avon river · cumb valley · ford shallow place in the river Ancient Britons had their own religion and priests or druids and temples. In the year 55 BC Britain became a Roman province. Romans were highly developed and had their own language latin, which has also greatly influenced English. The military occupation of the Isles ended in 410 AD. The Romans eventually brought Christianity to Britain. Hadrian's wall on the border of Scotland and England. It began constru...
American Art Revision Materials Colonial Period Portraiture. The first typically American paintings were illustrated maps but painting remained scarce during C17. There were 4 reasons: settlers came from backgrounds where art was unusual, Protestant attitudes was averse to imagery and painting, the English were not yet distinguished in visual arts and religious art was non-existent. The colonial period is almost entirely limited to portraiture (deemed as `useful' by settlers). These first paintings were made by limners and artisans without formal training and were based on what was popular in England during the Tudors. The paintings are technically unskilled, strongly patterned, flat and linear. Spanish painting in America was mostly religious. In C18, painting was a luxury and necessitated wealth that had by then become available. Portraitures remained at the forefront because the rich could thusly display their status and becaus...
American Art Revision Materials Colonial Period Portraiture. The first typically American paintings were illustrated maps but painting remained scarce during C17. There were 4 reasons: settlers came from backgrounds where art was unusual, Protestant attitudes was averse to imagery and painting, the English were not yet distinguished in visual arts and religious art was non-existent. The colonial period is almost entirely limited to portraiture (deemed as `useful' by settlers). These first paintings were made by limners and artisans without formal training and were based on what was popular in England during the Tudors. The paintings are technically unskilled, strongly patterned, flat and linear. Spanish painting in America was mostly religious. In C18, painting was a luxury and necessitated wealth that had by then become available. Portraitures remained at the forefront because the rich could thusly display their status and becaus...
PSYCHOLOGY PART 1: CORE Biological level of analysis Outline principles that define the biological level of analysis. 1) Behavior can be innate, because it is genetically based. Evolution may play a key role in behavior. 2) Animals may be studied as a means of understanding human behavior. 3) There are biological correlates of behavior. Cognitions, emotions and behaviors are products of the anatomy and physiology of our nervous and endocrine system. Explain how principles of the biological level of analysis may be demonstrated in research. 1) Correlational studies: Study by Buss, who hypothesized that across cultures, men will prefer to marry younger women because of greater reproductive capacity and women will place greater value on a potential mate's earning potential to provide survival advantages. This evolutionary hypothesis was tested in 37 cultures by sending out questione...
ECKHART TOLLE A NEW EARTH Awakening to Your Life's Purpose CONTENTS Chapter One The Flowering of Human Consciousness – 6 Evocation..................................................................................................6 The Purpose of This Book........................................................................8 Our Inherited Dysfunction........................................................................10 The Arising New consciousness..............................................................12 Spirituality and Religion..........................................................................14 The Urgency of Transformation...............................................................16 A New Heaven and a new Earth...............................................................18 ...
Ticket No1 1)The characteristic is called output characteristic or volt-ampere charateristic of a Rectifier Diode. 2)Rectifier Diode. 3) A is called Anode and C is called Cathode. An Anode has positive potential and therefore collects electrons in the device. Cathode has negative potential and therefore emits electrons to anode. The symbol looks like an arrow that ponts from the anode to the cathode, and reminds that conventional current flows easily from the p side(anode) to the n side(cathode). BIASING. Forward biasing. If the current in a diode is too large, excessive heat will destroy the device. Even approaching the burnout current value without reaching it can shorten its life. Therefore manufacturer's data sheet specifies the maximum forward current, that diode can withstand. This average current IF is the rate a diode can handle up to the forward direction when used a...
Arengu uuringud 1.Sissejuhatus. Areng kui konstrukt Areng kui vaatepunkt ja mõõdupuu Areng – tänase maailma keskne vaatepunkt elule + mõõdupuu toimuva hindamiseks -Erinevad kontekstid - arengueesmärgid, arengumaad, arenguabi, firma arengu kavandamine, arenenud isiksus, alaarenenud, arengupeetusega, arengu mõõdikud, arengufond ... -Areng - vaatepunkt, mis tähtsustab muutust, annab sellele suuna ning väärtustab selles “suunas” liikumist. Kasutusel nii argielus (alaarenenud naaber), poliitikas (arenguabi, arengufond), äris (strateegiline arengukavandamine), uurimistöös (arengumõõdikud) -Interdistsiplinaarsus - arengut uuritakse sotsioloogias (social change), psühholoogias (arengupsühholoogia), ajaloos (ideede ajalugu), poliitikateadustes (global development), välja on kujunenud omaette uurimisvaldkond “arengu-uuringud” (development studies) -“Arengu” alusel kujunevad hoiakud ja otsused – arenguhindamise tööstus! Lähenemine – sotsiaalteadu...
1 The Medium Is the Message In a culture like ours, long accustomed to splitting and dividing all things as a means of control, it is sometimes a bit of a shock to be reminded that, in operational and practical fact,, the medium is the message. This is merely to say that the personal and social consequences of any medium-that is, of any extension of ourselves-result from the new scale that is introduced into our affairs by each extension of ourselves, or by any new technology. Thus, with automation, for example, the new patterns of human association tend to eliminate jobs, it is true. That is the negative result. Positively, automation creates roles for people, which is to say depth of involvement in their work and human association that our preceding mechanical technology had destroyed. Many people would be disposed to say that it was not the machine, but what one did with the machine, that was its meaning or message. In terms of the ...
THE CAPITALIST NIGER Chika Onyeani ………………………Every African must internalise this book - period….DAA INTRODUCTION In October 1960, Nigeria received its independence from Britain. By then, Ghana the former Gold Coast had been independent for three years under the great Osagyefo Kwame Nkumah. It was a time for celebrating Africa’s coming of age, as more and more African countries received their independence either from Britain or France. It was especially a poignant time for Africa, as then British Prime Minister Harold McMillan articulated his now famous “winds of change” sweeping Africa. We had high hopes for Africa, for the Black race, that the insidious imposition of foreign rule on us, the looting of Africa’s natural resources by our colonial masters accorded us would be things of history. That is more than forty years ago. Unfortunately, the promise of independence has not been fulfilled. Today, Africa has become more desolate; th...
UNO SOOMERE ESTONIAN SYMPHONIC MUSIC. THE FIRST CENTURY 1896-1996. AN OVERVIEW With a Historical and Cultural Summary IN MEMORY OF THE GREAT ESTONIAN COMPOSERS CONTENTS ESTONIA AND THE ESTONIANS FOREWORD IN THE FOLD OF TSARIST RUSSIA. EMERGENCE AND FIRST STEPS ON THE CLASSICAL-ROMANTIC PATH. HISTORICAL INTRODUCTION I. MUSICAL LIFE IN TARTU AT THE TURN OF THE CENTURY. TRAILBLAZERS: ALEKSANDER LÄTE, RUDOLF TOBIAS, ARTUR KAPP. II. THE FIRST DECADE OF THE 20TH CENTURY. ARTUR LEMBA: THE BEGINNING OF ESTONIAN SYMPHONY AND OPERA. III. NEW DEVELOPMENTS IN CULTURAL AND MUSICAL LIFE: THE END OF THE TSARIST PERIOD. THE INDEPENDENT REPUBLIC OF ESTONIA: THE INTRODUCTION OF INNOVATIONS FROM WESTERN ART AND THE EVOLUTION OF NATIONALLY ORIENTED MUSICAL TRENDS. IV. THE TWENTIES. ARTUR KAPP: ROMANTICIST AND DRAMATIST. V. THE INFLUENCE OF NEW WESTERN MUSIC...
TARKVARATEHNIKA KORDAMISKÜSIMUSED 1. Mis on tarkvaratehnika? Software engineering ! “Engineers Australia” definitsioon: Tarkvaratehnika on tiimide poolt rakendatav distsipliin tootmaks kõrgekvaliteedilist, suuremastaabilist ja hinnaefektiivset tarkvara mis rahuldab kasutajate nõudmisi ja mida saab hooldada teatud ajaperioodi vältel. IEEE definitsioon: Tarkvaratehnika on süstemaatilise, distsiplineeritud ja mõõdetava lähehemisviisi rakendamine tarkvara arendamisele, käitamisele ja hooldamisele, see tähendab, inseneriteaduste rakendamine tarkvarale. Tarkvaraarendus on nõrgem termin, kus tingimata ei kasutata protsesse, tööriistu, standardeid, jne. Tarkvaraarendus on progemine + konfigursatsiooni haldus. Tarkvaratehnika ei ole ainult programmi kirjutamine, vaid teemad hõlmavad ka kvaliteeti, ajakavasid, tasuvust ning põhimõtete ja korra tundmist ja rakendamist. Tar...
THE W R I T E R ' S JOURNEY M Y T H I C STRUCTURE FOR W R I T E R S THIRD EDITION CHRISTOPHER VOGLER S C R E E N W R I T I N G / W R I T I N G Christopher Vogler explores the powerful relationship between mythology and storytelling in his clear, concise style that's made i this book required reading for movie executives, screenwriters, playwrights, fiction and non-fiction writers, scholars, and fans of pop culture all over the world. Discover a set of useful myth-inspired storytelling paradigms like "The Hero's Journey," and step-by-step guidelines to plot and • character development. Based on the work of Joseph Campbell, The Writers Jour...
CHAPTER 1 GETTING TO KNOW THE TOEFL WHAT IS THE TOEFL? The TOEFL is a comprehensive English language examination required by more than 3,000 colleges and universities in the United States, Canada, and other parts of the world. In addition, foreign born professionals frequently need a TOEFL score for certification to practice their profession in the United States or Canada. The TOEFL is a timed test that consists of the three sections listed here. THE TOEFL Section 1 Listening Comprehension 50 questions 35 minutes Part A Statements 20 questions Part B Short Dialogs 15 questions ...
More praise for Influence: Science and Practice! "We've known for years that people buy based on emotions and justify their buying decision based on logic. Dr. Cialdini was able, in a lucid and cogent manner, to tell us why this happens." --MARK BLACKBURN, Sr. Vice President, Director of Insurance Operations, State Auto Insurance Companies "Dr. Cialdini's ability to relate his material directly to the specifics of what we do with our customers and how we do it, enabled us to make significant changes. His work has enabled us to gain significant competitive differentiation and advantage" -LAURENCE HOF, Vice President, Relationship Consulting, Advanta Corporation "This will help executives make better decisions and use their influence wisely ... Robert Cialdini has had a greater impact on my thinking on this topic than any other scientist." -CHARLES T...
PRAISE FOR The 4-Hour Workweek "This is a whole new ball game. Highly recommended." --Dr. Stewart D. Friedman, adviser to Jack Welch and former director of the Work/Life Integration Program at the Wharton School, University of Pennsylvania "It's about time this book was written. It is a long-overdue manifesto for the mobile lifestyle, and Tim Ferriss is the ideal ambassador. This will be huge." --Jack Can eld, cocreator of Chicken Soup for the Soul®, 100+ million copies sold "Stunning and amazing. From mini-retirements to outsourcing your life, it's all here. Whether you're a wage slave or a Fortune 500 CEO, this book will change your life!" --Phil Town, New York Times bestselling author of Rule #1 "The 4-Hour Workweek is a new way of solving a very old problem: just how can we work to live and prevent our lives from being all about work? A world of in nite...
Some of the things you will learn in THE CODEBREAKERS • How secret Japanese messages were decoded in Washington hours before Pearl Harbor. • How German codebreakers helped usher in the Russian Revolution. • How John F. Kennedy escaped capture in the Pacific because the Japanese failed to solve a simple cipher. • How codebreaking determined a presidential election, convicted an underworld syndicate head, won the battle of Midway, led to cruel Allied defeats in North Africa, and broke up a vast Nazi spy ring. • How one American became the world's most famous codebreaker, and another became the world's greatest. • How codes and codebreakers operate today within the secret agencies of the U.S. and Russia. • And incredibly much more. "For many evenings of gripping reading, no better choice can be made than this book." —Christian Science Monitor THE ...
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