7 lines
163 B
Text
7 lines
163 B
Text
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constants (P : ℕ → Prop) (R : Prop)
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lemma foo [intro!] : (: P 0 :) → R := sorry
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constants (P0 : P 0)
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attribute P0 [intro!]
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example : R :=
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by grind -- fails
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