Homeomorph.sumComm

(X : Type u) → (Y : Type v) → [inst : TopologicalSpace X] → [inst_1 : TopologicalSpace Y] → X ⊕ Y ≃ₜ Y ⊕ X

X ⊕ Y is homeomorphic to Y ⊕ X.

Defined in: Mathlib.Topology.Constructions.SumProd
Cited by: 3 results in Mathlib
Foundations: Depth 76 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: TopologicalSpace TopologicalSpace

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