11 lines
184 B
Text
11 lines
184 B
Text
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¬(p → q) : Prop
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¬p → q : Prop
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¬p → q : Prop
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¬(p → q) : Prop
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p ↔ q : Prop
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¬(p ↔ q) : Prop
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¬p ↔ q : Prop
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¬p ↔ q : Prop
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p → q ↔ q : Prop
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p → (q ↔ q) : Prop
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