Homework 7 ANSWER KEY

Homework 7 ANSWER KEY - Philosophy 211 Homework 7 ANSWER...

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ANSWER KEY 1. Determine whether the following are sentences or non-sentence formulas. Circle any free variables that occur. [10 points] Sentence Non-Sentence Formula 1. ( 2200 x)( 5 y)[Hx zy ( 5 z)(Lzx v Pzy)] X 2. ~( 5 2200 z)( 2200 y)(Rxyz Qzyx)] X 3. ( 2200 x)( 2200 y)[(Hab Hcdy) (Rabx v Tce z)] X 4. ( 2200 z)[Sz ( 5 2200 x)(Max Mbyz))] X 5. ( 5 2200 w)[Tw (H 2200 z)Gz)] X 2. Use the following key to translate the following sentences from English into PL or from PL into English. [45 points] UD: {Things that go bump in the night…} Cx: x sleeps in a coffin Lx: x is a lab experiment Vx: x is a vampire Bxy: x bites y Sxy: x is scarier than y d: Dracula f: Frankenstein’s Monster w: Wolfman 1. Dracula is a vampire only if Frankenstein’s Monster is a lab experiment; in addition, Wolfman does not sleep in a coffin. (Vd
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Homework 7 ANSWER KEY - Philosophy 211 Homework 7 ANSWER...

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