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Mirrors > Home > MPE Home > Th. List > elqtop | Structured version Visualization version GIF version |
Description: Value of the quotient topology function. (Contributed by Mario Carneiro, 23-Mar-2015.) |
Ref | Expression |
---|---|
qtopval.1 | ⊢ 𝑋 = ∪ 𝐽 |
Ref | Expression |
---|---|
elqtop | ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑍–onto→𝑌 ∧ 𝑍 ⊆ 𝑋) → (𝐴 ∈ (𝐽 qTop 𝐹) ↔ (𝐴 ⊆ 𝑌 ∧ (◡𝐹 “ 𝐴) ∈ 𝐽))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | qtopval.1 | . . . 4 ⊢ 𝑋 = ∪ 𝐽 | |
2 | 1 | qtopval2 22828 | . . 3 ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑍–onto→𝑌 ∧ 𝑍 ⊆ 𝑋) → (𝐽 qTop 𝐹) = {𝑠 ∈ 𝒫 𝑌 ∣ (◡𝐹 “ 𝑠) ∈ 𝐽}) |
3 | 2 | eleq2d 2825 | . 2 ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑍–onto→𝑌 ∧ 𝑍 ⊆ 𝑋) → (𝐴 ∈ (𝐽 qTop 𝐹) ↔ 𝐴 ∈ {𝑠 ∈ 𝒫 𝑌 ∣ (◡𝐹 “ 𝑠) ∈ 𝐽})) |
4 | imaeq2 5962 | . . . . 5 ⊢ (𝑠 = 𝐴 → (◡𝐹 “ 𝑠) = (◡𝐹 “ 𝐴)) | |
5 | 4 | eleq1d 2824 | . . . 4 ⊢ (𝑠 = 𝐴 → ((◡𝐹 “ 𝑠) ∈ 𝐽 ↔ (◡𝐹 “ 𝐴) ∈ 𝐽)) |
6 | 5 | elrab 3625 | . . 3 ⊢ (𝐴 ∈ {𝑠 ∈ 𝒫 𝑌 ∣ (◡𝐹 “ 𝑠) ∈ 𝐽} ↔ (𝐴 ∈ 𝒫 𝑌 ∧ (◡𝐹 “ 𝐴) ∈ 𝐽)) |
7 | uniexg 7584 | . . . . . . . . 9 ⊢ (𝐽 ∈ 𝑉 → ∪ 𝐽 ∈ V) | |
8 | 1, 7 | eqeltrid 2844 | . . . . . . . 8 ⊢ (𝐽 ∈ 𝑉 → 𝑋 ∈ V) |
9 | 8 | 3ad2ant1 1131 | . . . . . . 7 ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑍–onto→𝑌 ∧ 𝑍 ⊆ 𝑋) → 𝑋 ∈ V) |
10 | simp3 1136 | . . . . . . 7 ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑍–onto→𝑌 ∧ 𝑍 ⊆ 𝑋) → 𝑍 ⊆ 𝑋) | |
11 | 9, 10 | ssexd 5251 | . . . . . 6 ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑍–onto→𝑌 ∧ 𝑍 ⊆ 𝑋) → 𝑍 ∈ V) |
12 | simp2 1135 | . . . . . 6 ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑍–onto→𝑌 ∧ 𝑍 ⊆ 𝑋) → 𝐹:𝑍–onto→𝑌) | |
13 | fornex 7785 | . . . . . 6 ⊢ (𝑍 ∈ V → (𝐹:𝑍–onto→𝑌 → 𝑌 ∈ V)) | |
14 | 11, 12, 13 | sylc 65 | . . . . 5 ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑍–onto→𝑌 ∧ 𝑍 ⊆ 𝑋) → 𝑌 ∈ V) |
15 | elpw2g 5271 | . . . . 5 ⊢ (𝑌 ∈ V → (𝐴 ∈ 𝒫 𝑌 ↔ 𝐴 ⊆ 𝑌)) | |
16 | 14, 15 | syl 17 | . . . 4 ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑍–onto→𝑌 ∧ 𝑍 ⊆ 𝑋) → (𝐴 ∈ 𝒫 𝑌 ↔ 𝐴 ⊆ 𝑌)) |
17 | 16 | anbi1d 629 | . . 3 ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑍–onto→𝑌 ∧ 𝑍 ⊆ 𝑋) → ((𝐴 ∈ 𝒫 𝑌 ∧ (◡𝐹 “ 𝐴) ∈ 𝐽) ↔ (𝐴 ⊆ 𝑌 ∧ (◡𝐹 “ 𝐴) ∈ 𝐽))) |
18 | 6, 17 | syl5bb 282 | . 2 ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑍–onto→𝑌 ∧ 𝑍 ⊆ 𝑋) → (𝐴 ∈ {𝑠 ∈ 𝒫 𝑌 ∣ (◡𝐹 “ 𝑠) ∈ 𝐽} ↔ (𝐴 ⊆ 𝑌 ∧ (◡𝐹 “ 𝐴) ∈ 𝐽))) |
19 | 3, 18 | bitrd 278 | 1 ⊢ ((𝐽 ∈ 𝑉 ∧ 𝐹:𝑍–onto→𝑌 ∧ 𝑍 ⊆ 𝑋) → (𝐴 ∈ (𝐽 qTop 𝐹) ↔ (𝐴 ⊆ 𝑌 ∧ (◡𝐹 “ 𝐴) ∈ 𝐽))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 395 ∧ w3a 1085 = wceq 1541 ∈ wcel 2109 {crab 3069 Vcvv 3430 ⊆ wss 3891 𝒫 cpw 4538 ∪ cuni 4844 ◡ccnv 5587 “ cima 5591 –onto→wfo 6428 (class class class)co 7268 qTop cqtop 17195 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-rep 5213 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-ral 3070 df-rex 3071 df-reu 3072 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4845 df-iun 4931 df-br 5079 df-opab 5141 df-mpt 5162 df-id 5488 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-ov 7271 df-oprab 7272 df-mpo 7273 df-qtop 17199 |
This theorem is referenced by: qtoptop2 22831 elqtop2 22833 elqtop3 22835 |
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