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test: add test for example that does not work in Lean3

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cc @eric-wieser
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Leonardo de Moura 2022-03-30 12:57:46 -07:00
parent e53e088be8
commit 1a8840330f
1 changed files with 6 additions and 0 deletions
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tests/lean/run/wfLean3Issue.lean Normal file
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@ -0,0 +1,6 @@
def foo : Nat → Nat → Nat
| 0, 0 => 1
| s+1, 0 => foo s 0 + 1
| 0, b+1 => foo 0 b + 1
| s+1, b+1 => foo (s+1) b + foo s (b+1)
termination_by foo b s => (b, s)