Step
*
of Lemma
ss-homotopic_weakening
No Annotations
∀X:SeparationSpace
∀[x0,x1:Point(X)]. ∀a,b:Point(Path(X)). (ss-homotopic(X;x0;x1;a;b)) supposing (a ≡ b and b@r0 ≡ x0 and b@r1 ≡ x1)
BY
{ (Auto
THEN (Assert λt.b ∈ Point(Path(Path(X))) BY
(RWO "path-ss-point" 0 THEN Auto THEN MemTypeCD THEN Reduce 0 THEN Auto))
) }
1
1. X : SeparationSpace@i'
2. [x0] : Point(X)
3. [x1] : Point(X)
4. a : Point(Path(X))@i
5. b : Point(Path(X))@i
6. b@r1 ≡ x1
7. b@r0 ≡ x0
8. a ≡ b
9. λt.b ∈ Point(Path(Path(X)))
⊢ ss-homotopic(X;x0;x1;a;b)
Latex:
Latex:
No Annotations
\mforall{}X:SeparationSpace
\mforall{}[x0,x1:Point(X)].
\mforall{}a,b:Point(Path(X)). (ss-homotopic(X;x0;x1;a;b)) supposing (a \mequiv{} b and b@r0 \mequiv{} x0 and b@r1 \mequiv{} x1)
By
Latex:
(Auto
THEN (Assert \mlambda{}t.b \mmember{} Point(Path(Path(X))) BY
(RWO "path-ss-point" 0 THEN Auto THEN MemTypeCD THEN Reduce 0 THEN Auto))
)
Home
Index