Metamath Proof Explorer


Theorem fclstop

Description: Reverse closure for the cluster point predicate. (Contributed by Mario Carneiro, 11-Apr-2015) (Revised by Stefan O'Rear, 8-Aug-2015)

Ref Expression
Assertion fclstop AJfClusFJTop

Proof

Step Hyp Ref Expression
1 eqid J=J
2 1 isfcls AJfClusFJTopFFilJsFAclsJs
3 2 simp1bi AJfClusFJTop