54175f3b99
This PR strips the `Expr.mdata` that `WF.Fix` uses to associate goal with recursive calls from the goal presented to the tactics. Fixes #10895.
16 lines
333 B
Text
16 lines
333 B
Text
axiom T : Type
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axiom T.lt : T → T → Prop
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axiom T.wf_lt : WellFounded T.lt
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axiom T.f : T → T
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instance : WellFoundedRelation T := ⟨_, T.wf_lt⟩
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axiom T.lt_f x : (T.f x).lt x
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set_option pp.raw true
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#guard_msgs in
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noncomputable def foo (t : T) : Unit :=
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foo (T.f t)
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termination_by t
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decreasing_by
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have := T.lt_f t
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grind
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