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| Mirrors > Home > MPE Home > Th. List > elqtop2 | Structured version Visualization version GIF version | ||
| Description: Value of the quotient topology function. (Contributed by Mario Carneiro, 9-Apr-2015.) |
| Ref | Expression |
|---|---|
| qtoptop.1 | ⊢ 𝑋 = ∪ 𝐽 |
| Ref | Expression |
|---|---|
| elqtop2 | ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑋–onto→𝑌) → (𝐴 ∈ (𝐽 qTop 𝐹) ↔ (𝐴 ⊆ 𝑌 ∧ (◡𝐹 “ 𝐴) ∈ 𝐽))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssid 3959 | . 2 ⊢ 𝑋 ⊆ 𝑋 | |
| 2 | qtoptop.1 | . . 3 ⊢ 𝑋 = ∪ 𝐽 | |
| 3 | 2 | elqtop 23863 | . 2 ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑋–onto→𝑌 ∧ 𝑋 ⊆ 𝑋) → (𝐴 ∈ (𝐽 qTop 𝐹) ↔ (𝐴 ⊆ 𝑌 ∧ (◡𝐹 “ 𝐴) ∈ 𝐽))) |
| 4 | 1, 3 | mp3an3 1479 | 1 ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑋–onto→𝑌) → (𝐴 ∈ (𝐽 qTop 𝐹) ↔ (𝐴 ⊆ 𝑌 ∧ (◡𝐹 “ 𝐴) ∈ 𝐽))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 400 = wceq 1570 ∈ wcel 2143 ⊆ wss 3905 ∪ cuni 4872 ◡ccnv 5660 “ cima 5664 –onto→wfo 6534 (class class class)co 7410 qTop cqtop 17561 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-rep 5238 ax-sep 5257 ax-nul 5269 ax-pow 5336 ax-pr 5404 ax-un 7732 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4488 df-pw 4564 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-iun 4958 df-br 5110 df-opab 5174 df-mpt 5193 df-id 5556 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-ov 7413 df-oprab 7414 df-mpo 7415 df-qtop 17565 |
| This theorem is used by: qtopuni 23868 qtopkgen 23876 basqtop 23877 tgqtop 23878 qtopcmap 23885 imasf1oxms 24655 |
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