explicit performative prefaces has not been solved. · The illocutionary notion of a speech act affords a new type of "use" theory of meaning. Questions 1 Are all speech acts like "I double" in that they are constituted entirely by convention? (See Strawson (1964).) 2 Can every speech act be assigned a locutionary content? Discuss our apparent counterexamples and argue pro or con. 3 Choose a particular type of speech act and try to enumerate its consti- tutive rules and its characteristic regulative conditions. (Searle (1969) does this for the act of promising.) Speech acts and illocutionary force 155 4 Spot some difficulties for Austin's distinction between locutionary, illocutionary, and perlocutionary features. Find some troublesome borderline cases. 5 Lewis (1970) defends the anti-Austinian idea that, when one tokens
Thus, synergetic or antago- can be used without increasing weight loss. nist effects between several ingredients Phosphates are believed to act on muscle pro- have to be studied for each meat product teins by increasing the pH and ionic strength individually. (Fernandez-Martin 2002). They affect meat Meat products are generally recognized as fibers in a similar way as ATP. The simulta- contributing to nutrition in that they consti- neous addition of NaCl and phosphate to tute an important source of high biological meat, therefore, yields considerable modifi- value proteins, group B vitamins, minerals, cation of the physicochemical features of the trace elements, and other bioactive com- myofibrillar proteins (Kijowski and Mast pounds. However, a negative image often 1988; Findlay and Barbut 1992). The interest
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