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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 23784 | . . 3 ⊢ (𝑗 ∈ Locally Top → 𝑗 ∈ Top) | |
| 2 | 1 | ssriv 3935 | . 2 ⊢ Locally Top ⊆ Top |
| 3 | resttop 23471 | . . . . 5 ⊢ ((𝑗 ∈ Top ∧ 𝑥 ∈ 𝑗) → (𝑗 ↾t 𝑥) ∈ Top) | |
| 4 | 3 | adantl 487 | . . . 4 ⊢ ((⊤ ∧ (𝑗 ∈ Top ∧ 𝑥 ∈ 𝑗)) → (𝑗 ↾t 𝑥) ∈ Top) |
| 5 | ssidd 3954 | . . . 4 ⊢ (⊤ → Top ⊆ Top) | |
| 6 | 4, 5 | restlly 23795 | . . 3 ⊢ (⊤ → Top ⊆ Locally Top) |
| 7 | 6 | mptru 1577 | . 2 ⊢ Top ⊆ Locally Top |
| 8 | 2, 7 | eqssi 3947 | 1 ⊢ Locally Top = Top |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∧ wa 401 = wceq 1570 ⊤wtru 1571 ∈ wcel 2145 ⊆ wss 3899 (class class class)co 7418 ↾t crest 17584 Topctop 23204 Locally clly 23776 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7749 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 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 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-ov 7421 df-oprab 7422 df-mpo 7423 df-om 7876 df-1st 7999 df-2nd 8000 df-en 8967 df-fin 8970 df-fi 9396 df-rest 17586 df-topgen 17607 df-top 23205 df-bases 23257 df-lly 23778 |
| This theorem is used by: topnlly 23803 |
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