9 lines
176 B
Text
9 lines
176 B
Text
--
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open nat prod
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constant R : nat → nat → Prop
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constant f (a b : nat) (H : R a b) : nat
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axiom Rtrue (a b : nat) : R a b
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#check f 1 0 (Rtrue (fst (prod.mk 1 (0:nat))) 0)
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