stuck at two places in proof of preservation of substitution

This commit is contained in:
wadler 2017-06-25 19:09:39 +01:00
parent 500d56b3b0
commit fbd3cc1d2e

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@ -490,12 +490,6 @@ weaken-closed {P} {A} {Γ} ⊢P = weaken g ⊢P
{-
[:=]-preserves-⊢ {x} ⊢P (Ax {_} {y} Γy≡justB) with x ≟ y
... | yes x=y = ?
... | no x≠y = ?
[:=]-preserves-⊢ {Γ} {x} vA (var y y∈Γ) with x ≟ y
... | yes x=y = {!!}
... | no x≠y = {!!}