16 lines
131 B
Text
16 lines
131 B
Text
case hp
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p q : Prop
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a : p ∧ q
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⊢ p
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case hp
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p q : Prop
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: p ∧ q
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a : p
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b : q
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⊢ p
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case hp
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p q : Prop
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: p ∧ q
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a : p
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b : q
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⊢ p
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