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Mirrors > Home > MPE Home > Th. List > kgenss | Structured version Visualization version GIF version |
Description: The compact generator generates a finer topology than the original. (Contributed by Mario Carneiro, 20-Mar-2015.) |
Ref | Expression |
---|---|
kgenss | ⊢ (𝐽 ∈ Top → 𝐽 ⊆ (𝑘Gen‘𝐽)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elssuni 4871 | . . . . 5 ⊢ (𝑥 ∈ 𝐽 → 𝑥 ⊆ ∪ 𝐽) | |
2 | 1 | a1i 11 | . . . 4 ⊢ (𝐽 ∈ Top → (𝑥 ∈ 𝐽 → 𝑥 ⊆ ∪ 𝐽)) |
3 | elrestr 17139 | . . . . . . . . 9 ⊢ ((𝐽 ∈ Top ∧ 𝑘 ∈ 𝒫 ∪ 𝐽 ∧ 𝑥 ∈ 𝐽) → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘)) | |
4 | 3 | 3expa 1117 | . . . . . . . 8 ⊢ (((𝐽 ∈ Top ∧ 𝑘 ∈ 𝒫 ∪ 𝐽) ∧ 𝑥 ∈ 𝐽) → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘)) |
5 | 4 | an32s 649 | . . . . . . 7 ⊢ (((𝐽 ∈ Top ∧ 𝑥 ∈ 𝐽) ∧ 𝑘 ∈ 𝒫 ∪ 𝐽) → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘)) |
6 | 5 | a1d 25 | . . . . . 6 ⊢ (((𝐽 ∈ Top ∧ 𝑥 ∈ 𝐽) ∧ 𝑘 ∈ 𝒫 ∪ 𝐽) → ((𝐽 ↾t 𝑘) ∈ Comp → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘))) |
7 | 6 | ralrimiva 3103 | . . . . 5 ⊢ ((𝐽 ∈ Top ∧ 𝑥 ∈ 𝐽) → ∀𝑘 ∈ 𝒫 ∪ 𝐽((𝐽 ↾t 𝑘) ∈ Comp → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘))) |
8 | 7 | ex 413 | . . . 4 ⊢ (𝐽 ∈ Top → (𝑥 ∈ 𝐽 → ∀𝑘 ∈ 𝒫 ∪ 𝐽((𝐽 ↾t 𝑘) ∈ Comp → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘)))) |
9 | 2, 8 | jcad 513 | . . 3 ⊢ (𝐽 ∈ Top → (𝑥 ∈ 𝐽 → (𝑥 ⊆ ∪ 𝐽 ∧ ∀𝑘 ∈ 𝒫 ∪ 𝐽((𝐽 ↾t 𝑘) ∈ Comp → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘))))) |
10 | toptopon2 22067 | . . . 4 ⊢ (𝐽 ∈ Top ↔ 𝐽 ∈ (TopOn‘∪ 𝐽)) | |
11 | elkgen 22687 | . . . 4 ⊢ (𝐽 ∈ (TopOn‘∪ 𝐽) → (𝑥 ∈ (𝑘Gen‘𝐽) ↔ (𝑥 ⊆ ∪ 𝐽 ∧ ∀𝑘 ∈ 𝒫 ∪ 𝐽((𝐽 ↾t 𝑘) ∈ Comp → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘))))) | |
12 | 10, 11 | sylbi 216 | . . 3 ⊢ (𝐽 ∈ Top → (𝑥 ∈ (𝑘Gen‘𝐽) ↔ (𝑥 ⊆ ∪ 𝐽 ∧ ∀𝑘 ∈ 𝒫 ∪ 𝐽((𝐽 ↾t 𝑘) ∈ Comp → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘))))) |
13 | 9, 12 | sylibrd 258 | . 2 ⊢ (𝐽 ∈ Top → (𝑥 ∈ 𝐽 → 𝑥 ∈ (𝑘Gen‘𝐽))) |
14 | 13 | ssrdv 3927 | 1 ⊢ (𝐽 ∈ Top → 𝐽 ⊆ (𝑘Gen‘𝐽)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∈ wcel 2106 ∀wral 3064 ∩ cin 3886 ⊆ wss 3887 𝒫 cpw 4533 ∪ cuni 4839 ‘cfv 6433 (class class class)co 7275 ↾t crest 17131 Topctop 22042 TopOnctopon 22059 Compccmp 22537 𝑘Genckgen 22684 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-id 5489 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-ov 7278 df-oprab 7279 df-mpo 7280 df-rest 17133 df-top 22043 df-topon 22060 df-kgen 22685 |
This theorem is referenced by: kgenhaus 22695 kgencmp 22696 kgencmp2 22697 kgenidm 22698 iskgen2 22699 kgencn3 22709 kgen2cn 22710 |
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