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| Mirrors > Home > ILE Home > Th. List > cntopex | GIF version | ||
| Description: The standard topology on the complex numbers is a set. (Contributed by Jim Kingdon, 25-Sep-2025.) |
| Ref | Expression |
|---|---|
| cntopex | ⊢ (MetOpen‘(abs ∘ − )) ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cndsex 14873 | . 2 ⊢ (abs ∘ − ) ∈ V | |
| 2 | mopnset 14872 | . 2 ⊢ ((abs ∘ − ) ∈ V → (MetOpen‘(abs ∘ − )) ∈ V) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (MetOpen‘(abs ∘ − )) ∈ V |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2209 Vcvv 2821 ∘ ccom 4776 ‘cfv 5375 − cmin 8491 abscabs 11746 MetOpencmopn 14861 |
| 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-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-coll 4244 ax-sep 4247 ax-pow 4309 ax-pr 4344 ax-un 4576 ax-cnex 8264 ax-resscn 8265 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-iun 4012 df-br 4129 df-opab 4191 df-mpt 4192 df-id 4436 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-rn 4783 df-res 4784 df-ima 4785 df-iota 5335 df-fun 5377 df-fn 5378 df-f 5379 df-f1 5380 df-fo 5381 df-f1o 5382 df-fv 5383 df-oprab 6083 df-mpo 6084 df-1st 6368 df-2nd 6369 df-pnf 8356 df-mnf 8357 df-xr 8358 df-sub 8493 df-abs 11748 df-topgen 13597 df-bl 14866 df-mopn 14867 |
| This theorem is referenced by: cnfldstr 14878 cnfldtset 14886 |
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