22b5c957e9
Given a definition `foo`, they were previously called `foo._unfold` until 4.7.0. We tried to rename them to `foo.def`, but it created too many issues in the Mathlib repo. We decided to rename it again to `foo.eq_def`. The new name is also consistent with the `eq_<idx>` theorems generated for different "cases". That is, `foo.eq_def` is the equality theorem for the whole definition, and `foo.eq_<idx>` is the equality theorem for case `<idx>`. cc @semorrison
27 lines
421 B
Text
27 lines
421 B
Text
import Lean
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open Lean
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open Lean.Meta
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def tst (declName : Name) : MetaM Unit := do
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IO.println (← getUnfoldEqnFor? declName)
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mutual
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def isEven : Nat → Bool
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| 0 => true
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| n+1 => isOdd n
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decreasing_by
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sorry
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def isOdd : Nat → Bool
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| 0 => false
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| n+1 => isEven n
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decreasing_by
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sorry
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end
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#print isEven
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#eval tst ``isEven
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#check @isEven.eq_1
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#check @isEven.eq_2
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#check @isEven.eq_def
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