lean4-htt/tests/lean/run/lemma.lean
2022-06-28 22:35:13 +02:00

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macro mods:declModifiers "lemma" n:declId sig:declSig val:declVal : command => `($mods:declModifiers theorem $n $sig $val)
lemma fooSimple (n : Nat) : Prop :=
if n = 0 then True else False
lemma fooPat : Nat → Prop
| 0 => True
| n+1 => False