Step
*
of Lemma
map-sig-find_wf
∀[Key,Value:Type]. ∀[m:map-sig{i:l}(Key;Value)]. (map-sig-find(m) ∈ Key ─→ map-sig-map(m) ─→ (Value?))
BY
{ (ProveWfLemma THEN Unfold `map-sig-map` 0 THEN D (-1) THEN Auto) }
Latex:
\mforall{}[Key,Value:Type]. \mforall{}[m:map-sig\{i:l\}(Key;Value)].
(map-sig-find(m) \mmember{} Key {}\mrightarrow{} map-sig-map(m) {}\mrightarrow{} (Value?))
By
(ProveWfLemma THEN Unfold `map-sig-map` 0 THEN D (-1) THEN Auto)
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