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Prove ⊢(x)(Fx ⊃ Gx) ⊃ (x)(¬Gx ⊃ ¬Fx)
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Prove ⊢(x)(Fx ⊃ Gx) ⊃ (x)(¬Gx ⊃ ¬Fx)

User Ptrc
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Answer:

afd

Explanation:

asfdgf

User Maputo
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