Step
*
of Lemma
base-member-partial
∀[A:Type]. ∀[a:Base]. (a ∈ partial(A)) supposing ((¬is-exception(a)) and a ∈ A supposing (a)↓) supposing value-type(A)
BY
{ TACTIC:RepeatFor 4 ((UD THENA Auto)) }
1
1. [A] : Type
2. [%] : value-type(A)
3. [a] : Base
4. [%1] : a ∈ A supposing (a)↓
⊢ a ∈ partial(A) supposing ¬is-exception(a)
Latex:
Latex:
\mforall{}[A:Type]
\mforall{}[a:Base]. (a \mmember{} partial(A)) supposing ((\mneg{}is-exception(a)) and a \mmember{} A supposing (a)\mdownarrow{}) supposing valu\000Ce-type(A)
By
Latex:
TACTIC:RepeatFor 4 ((UD THENA Auto))
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