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fix(library/init/logic): eq.symm should not use eq.subst

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Reason: eq.symm is used by definitional package, and eq.subst is opaque.
Thus, computation will get stuck if it depends on eq.subst.
This commit is contained in:
Leonardo de Moura 2015-01-02 22:20:08 -08:00
parent c66826787a
commit 4781fc8365
1 changed files with 1 additions and 1 deletions
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library/init/logic.lean
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@ -43,7 +43,7 @@ namespace eq
subst H₂ H₁
definition symm (H : a = b) : b = a :=
subst H (refl a)
rec (refl a) H
namespace ops
notation H `⁻¹` := symm H --input with \sy or \-1 or \inv