| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > toponrestid | Structured version Visualization version GIF version | ||
| Description: Given a topology on a set, restricting it to that same set has no effect. (Contributed by Jim Kingdon, 6-Jul-2022.) |
| Ref | Expression |
|---|---|
| toponrestid.t | ⊢ 𝐴 ∈ (TopOn‘𝐵) |
| Ref | Expression |
|---|---|
| toponrestid | ⊢ 𝐴 = (𝐴 ↾t 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | toponrestid.t | . . 3 ⊢ 𝐴 ∈ (TopOn‘𝐵) | |
| 2 | 1 | toponunii 22872 | . . . 4 ⊢ 𝐵 = ∪ 𝐴 |
| 3 | 2 | restid 17365 | . . 3 ⊢ (𝐴 ∈ (TopOn‘𝐵) → (𝐴 ↾t 𝐵) = 𝐴) |
| 4 | 1, 3 | ax-mp 5 | . 2 ⊢ (𝐴 ↾t 𝐵) = 𝐴 |
| 5 | 4 | eqcomi 2746 | 1 ⊢ 𝐴 = (𝐴 ↾t 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 ∈ wcel 2114 ‘cfv 6500 (class class class)co 7368 ↾t crest 17352 TopOnctopon 22866 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5226 ax-sep 5243 ax-nul 5253 ax-pow 5312 ax-pr 5379 ax-un 7690 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5527 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-fv 6508 df-ov 7371 df-oprab 7372 df-mpo 7373 df-rest 17354 df-topon 22867 |
| This theorem is referenced by: cncfcn1 24872 cncfmpt2f 24876 cdivcncf 24882 cnrehmeo 24919 cnrehmeoOLD 24920 mulcncf 25414 cnlimc 25857 dvidlem 25884 dvcnp2 25889 dvcnp2OLD 25890 dvcn 25891 dvnres 25901 dvaddbr 25908 dvmulbr 25909 dvmulbrOLD 25910 dvcobr 25917 dvcobrOLD 25918 dvcjbr 25921 dvrec 25927 dvexp3 25950 dveflem 25951 dvlipcn 25967 lhop1lem 25986 ftc1cn 26018 dvply1 26259 dvtaylp 26346 taylthlem2 26350 taylthlem2OLD 26351 psercn 26404 pserdvlem2 26406 pserdv 26407 abelth 26419 logcn 26624 dvloglem 26625 dvlog 26628 dvlog2 26630 efopnlem2 26634 logtayl 26637 cxpcn 26722 cxpcnOLD 26723 cxpcn2 26724 cxpcn3 26726 resqrtcn 26727 sqrtcn 26728 dvatan 26913 ftalem3 27053 cxpcncf1 34773 knoppcnlem10 36724 knoppcnlem11 36725 dvtan 37921 ftc1cnnc 37943 dvasin 37955 dvacos 37956 cxpcncf2 46257 |
| Copyright terms: Public domain | W3C validator |