Explicit limits and colimits #
This file applies the general API for explicit limits and colimits in CompHausLike P
(see
the file Mathlib.Topology.Category.CompHausLike.Limits
) to the special case of Stonean
.
theorem
Stonean.extremallyDisconnected_pullback
{X Y Z : Stonean}
{f : X ⟶ Z}
(i : Y ⟶ Z)
(hi : Topology.IsOpenEmbedding ⇑(CategoryTheory.ConcreteCategory.hom f))
: