Description: Reverse closure for the convergence relation. (Contributed by Mario Carneiro, 7-Sep-2015)
Ref | Expression | ||
---|---|---|---|
Assertion | lmrcl | |- ( F ( ~~>t ` J ) P -> J e. Top ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-lm | |- ~~>t = ( j e. Top |-> { <. f , x >. | ( f e. ( U. j ^pm CC ) /\ x e. U. j /\ A. u e. j ( x e. u -> E. y e. ran ZZ>= ( f |` y ) : y --> u ) ) } ) |
|
2 | 1 | dmmptss | |- dom ~~>t C_ Top |
3 | df-br | |- ( F ( ~~>t ` J ) P <-> <. F , P >. e. ( ~~>t ` J ) ) |
|
4 | elfvdm | |- ( <. F , P >. e. ( ~~>t ` J ) -> J e. dom ~~>t ) |
|
5 | 3 4 | sylbi | |- ( F ( ~~>t ` J ) P -> J e. dom ~~>t ) |
6 | 2 5 | sselid | |- ( F ( ~~>t ` J ) P -> J e. Top ) |