An Introduction to Philosophy, Issue 163 |
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Page 181
... sentence . Again , the sentence ' All snakes are mammals ' is false , but not logically false . The extra- logical words ' snakes ' and ' mammals ' occur in it essentially . Now consider the sentence : If all men are mortal and Socrates ...
... sentence . Again , the sentence ' All snakes are mammals ' is false , but not logically false . The extra- logical words ' snakes ' and ' mammals ' occur in it essentially . Now consider the sentence : If all men are mortal and Socrates ...
Page 187
... sentences entails a synthetic sentence S. Hence S is cognitively meaningful by the principle of conclusive verifiability . But the sentence ' S or N ' , where ' N ' is any sentence you please , is entailed by ' S ' . Hence the finite ...
... sentences entails a synthetic sentence S. Hence S is cognitively meaningful by the principle of conclusive verifiability . But the sentence ' S or N ' , where ' N ' is any sentence you please , is entailed by ' S ' . Hence the finite ...
Page 191
... sentence , contrary to what is in- tended . Alonzo Church has another criticism , which is even more devastating . Let ' p ' , ' q ' , and ' r ' be observation sentences , none of which entails any of the others , and let ' S ' be any ...
... sentence , contrary to what is in- tended . Alonzo Church has another criticism , which is even more devastating . Let ' p ' , ' q ' , and ' r ' be observation sentences , none of which entails any of the others , and let ' S ' be any ...
Contents
PRELIMINARY EXPLANATIONS ON THE NATURE | 3 |
THE ARGUMENT WITH CEPHALUS | 36 |
THE ARGUMENT WITH THRASYMACHUS | 46 |
Copyright | |
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assert assume assumption attentively believes awake believe attentively believes that q Cartesian Circle causal Cephalus clarity and distinctness clear and distinct clearly and distinctly cogito propositions concept conclusion consequences contingent proposition criterion of incorrigible deduce define definiendum definiens Descartes doubt dream argument entails evidence evil demon argument example experience explication father follows formal reality four sides G. E. Moore God's existence Haldane and Ross Hence idea imply incorrigible knowledge integer James know incorrigibly know with certainty logical positivists logical words logically necessary male parent material objects mathematical propositions Meditation mind mistaken nature necessarily false necessarily true propositions notion observation sentences omnipotence ontological argument option ought-judgments pain Peano's definition Peirce perceptual proposition philosophical Plato Polemarchus pragmatic premises principle of clarity proposition is corrigible proposition of kind prove question real definition reason self-contradictory sense square has four supremely perfect synthetic sentence Taj Mahal thing Thrasymachus tion