Homework 8 - H omework 8 Is (M L) a logical consequences of...

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Homework 8 Is (M ¬M)) Yes ((P Q)) contingent ( x)(P(x,x) ( z)P(x,z) tautology Suppose the well formed formula S2 is a tautology or logical truth. And suppose S1 is any well formed formula whatever. Then is the well formed formula S1 S2 The formula S1 S2 must be a tautology or logical truth I have, also, reason to believe that humble-bees are indispensable to the fertilisation of the heartsease (Viola tricolor), for other bees do not visit this flower. From experiments which I have tried, I have found that the visits of bees, if not indispensable, are at least highly beneficial to the fertilisation of our clovers; but humble-bees alone visit the common red clover (Trifolium pratense), as other bees cannot reach the nectar. Hence I have very little doubt, that if the whole genus of humble-bees became extinct or very rare in England, the heartsease and red clover would become very rare,
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This note was uploaded on 03/24/2010 for the course PHIL 220 taught by Professor Burkholder,leslie during the Winter '09 term at The University of British Columbia.

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Homework 8 - H omework 8 Is (M L) a logical consequences of...

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