Step
*
of Lemma
base-member-of-tagged+
∀[T,B:Type]. ∀[tg,a:Atom]. ∀[x:Base].
(mk-tagged(tg;x) ∈ T |+ a:B) supposing ((¬(tg = a ∈ Atom)) and (mk-tagged(tg;x) ∈ T))
BY
{ Auto }
Latex:
Latex:
\mforall{}[T,B:Type]. \mforall{}[tg,a:Atom]. \mforall{}[x:Base].
(mk-tagged(tg;x) \mmember{} T |+ a:B) supposing ((\mneg{}(tg = a)) and (mk-tagged(tg;x) \mmember{} T))
By
Latex:
Auto
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