4 lines
154 B
Text
4 lines
154 B
Text
definition lemma1 (p : nat → Prop) (q : nat → nat → Prop) : (∃ x y, p x ∧ q x y) → q 0 0 ∧ q 1 1 → (∃ x, p x) :=
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by blast
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print lemma1
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