Nuprl Lemma : homeomorphic_inversion
∀[X,Y:Type]. ∀[dX:metric(X)]. ∀[dY:metric(Y)].  (homeomorphic(X;dX;Y;dY) ⇒ homeomorphic(Y;dY;X;dX))
Proof
Definitions occuring in Statement : 
homeomorphic: homeomorphic(X;dX;Y;dY), 
metric: metric(X), 
uall: ∀[x:A]. B[x], 
implies: P ⇒ Q, 
universe: Type
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x], 
implies: P ⇒ Q, 
member: t ∈ T, 
prop: ℙ
Latex:
\mforall{}[X,Y:Type].  \mforall{}[dX:metric(X)].  \mforall{}[dY:metric(Y)].    (homeomorphic(X;dX;Y;dY)  {}\mRightarrow{}  homeomorphic(Y;dY;X;dX))
Date html generated:
2020_05_20-AM-11_42_10
Last ObjectModification:
2019_11_12-AM-09_55_21
Theory : reals
Home
Index