Step
*
of Lemma
fun-ss-eq
∀[ss:SeparationSpace]. ∀[A:Type]. ∀[f,g:A ⟶ Point(ss)]. uiff(f ≡ g;∀a:A. f a ≡ g a)
BY
{ (Intros THEN Unfold `ss-eq` 0 THEN RWO "fun-ss-sep" 0 THEN Auto) }
1
1. ss : SeparationSpace
2. A : Type
3. f : A ⟶ Point(ss)
4. g : A ⟶ Point(ss)
5. ∀a:A. (¬f a # g a)
⊢ ¬(∃a:A. f a # g a)
Latex:
Latex:
\mforall{}[ss:SeparationSpace]. \mforall{}[A:Type]. \mforall{}[f,g:A {}\mrightarrow{} Point(ss)]. uiff(f \mequiv{} g;\mforall{}a:A. f a \mequiv{} g a)
By
Latex:
(Intros THEN Unfold `ss-eq` 0 THEN RWO "fun-ss-sep" 0 THEN Auto)
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