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Provide a Conterexample in a Finite Domain to Each Given ∨ \lor

Question 34

Essay

provide a conterexample in a finite domain to each given invalid argument.
-1. (∀x)[Tx ⊃ (∼Wx ∨ \lor Fx)]
2. (∀x)[(∼Wx • Tx) ⊃ ∼Fx]
3. (∃x)(Tx • Fx) / (∃x)(Tx • ∼Wx)

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