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| Mirrors > Home > MPE Home > Th. List > toplly | Structured version Visualization version GIF version | ||
| Description: A topology is locally a topology. (Contributed by Mario Carneiro, 2-Mar-2015.) |
| Ref | Expression |
|---|---|
| toplly | ⊢ Locally Top = Top |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | llytop 23800 | . . 3 ⊢ (𝑗 ∈ Locally Top → 𝑗 ∈ Top) | |
| 2 | 1 | ssriv 3913 | . 2 ⊢ Locally Top ⊆ Top |
| 3 | resttop 23487 | . . . . 5 ⊢ ((𝑗 ∈ Top ∧ 𝑥 ∈ 𝑗) → (𝑗 ↾t 𝑥) ∈ Top) | |
| 4 | 3 | adantl 487 | . . . 4 ⊢ ((⊤ ∧ (𝑗 ∈ Top ∧ 𝑥 ∈ 𝑗)) → (𝑗 ↾t 𝑥) ∈ Top) |
| 5 | ssidd 3932 | . . . 4 ⊢ (⊤ → Top ⊆ Top) | |
| 6 | 4, 5 | restlly 23811 | . . 3 ⊢ (⊤ → Top ⊆ Locally Top) |
| 7 | 6 | mptru 1576 | . 2 ⊢ Top ⊆ Locally Top |
| 8 | 2, 7 | eqssi 3925 | 1 ⊢ Locally Top = Top |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∧ wa 401 = wceq 1569 ⊤wtru 1570 ∈ wcel 2144 ⊆ wss 3896 (class class class)co 7424 ↾t crest 17600 Topctop 23220 Locally clly 23792 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5327 ax-pr 5391 ax-un 7755 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-pss 4013 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-int 4907 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6497 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-ov 7427 df-oprab 7428 df-mpo 7429 df-om 7882 df-1st 8005 df-2nd 8006 df-en 8981 df-fin 8984 df-fi 9410 df-rest 17602 df-topgen 17623 df-top 23221 df-bases 23273 df-lly 23794 |
| This theorem is used by: topnlly 23819 |
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