Theorem restrcl 14841

Description: Reverse closure for the subspace topology. (Contributed by Mario Carneiro, 19-Mar-2015.) (Proof shortened by Jim Kingdon, 23-Mar-2023.)

Assertion

Ref	Expression
restrcl	|- ( ( J ↾t A ) e. Top -> ( J e. _V /\ A e. _V ) )

Proof of Theorem restrcl

Dummy variables x j y are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		0opn 14680	. 2 |- ( ( J ↾t A ) e. Top -> (/) e. ( J ↾t A ) )
2		df-rest 13274	. . 3 |- ↾t = ( j e. _V , x e. _V |-> ran ( y e. j |-> ( y i^i x ) ) )
3	2	elmpocl 6200	. 2 |- ( (/) e. ( J ↾t A ) -> ( J e. _V /\ A e. _V ) )
4	1, 3	syl 14	1 |- ( ( J ↾t A ) e. Top -> ( J e. _V /\ A e. _V ) )

Syntax hints:   -> wi 4   /\ wa 104   e. wcel 2200   _Vcvv 2799   i^i cin 3196   (/)c0 3491   |-> cmpt 4145   ran crn 4720  (class class class)co 6001   ↾_t crest 13272   Topctop 14671

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 617  ax-in2 618  ax-io 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-14 2203  ax-ext 2211  ax-sep 4202  ax-pow 4258  ax-pr 4293

This theorem depends on definitions:  df-bi 117  df-3an 1004  df-tru 1398  df-fal 1401  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ral 2513  df-rex 2514  df-v 2801  df-dif 3199  df-un 3201  df-in 3203  df-ss 3210  df-nul 3492  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-uni 3889  df-br 4084  df-opab 4146  df-id 4384  df-xp 4725  df-rel 4726  df-cnv 4727  df-co 4728  df-dm 4729  df-iota 5278  df-fun 5320  df-fv 5326  df-ov 6004  df-oprab 6005  df-mpo 6006  df-rest 13274  df-top 14672

This theorem is referenced by:  cnrest2r  14911