lean4-htt/tests/lean/wf1.lean.expected.out
Leonardo de Moura 52403fca83 feat: add support for guessing (very) simple WF relations
There are a lot of TODOs, but it is already useful for simple cases.

closes #847
2022-03-02 11:52:00 -08:00

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wf1.lean:1:4-1:5: error: fail to show termination for
g
with errors
argument #1 was not used for structural recursion
failed to eliminate recursive application
g (x - 1)
argument #2 was not used for structural recursion
insufficient number of parameters at recursive application
g (x - 1)
structural recursion cannot be used
failed to prove termination, use `termination_by` to specify a well-founded relation