Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
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 4837 | . . . . 5 ⊢ (𝑥 ∈ 𝐽 → 𝑥 ⊆ ∪ 𝐽) | |
2 | 1 | a1i 11 | . . . 4 ⊢ (𝐽 ∈ Top → (𝑥 ∈ 𝐽 → 𝑥 ⊆ ∪ 𝐽)) |
3 | elrestr 16887 | . . . . . . . . 9 ⊢ ((𝐽 ∈ Top ∧ 𝑘 ∈ 𝒫 ∪ 𝐽 ∧ 𝑥 ∈ 𝐽) → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘)) | |
4 | 3 | 3expa 1120 | . . . . . . . 8 ⊢ (((𝐽 ∈ Top ∧ 𝑘 ∈ 𝒫 ∪ 𝐽) ∧ 𝑥 ∈ 𝐽) → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘)) |
5 | 4 | an32s 652 | . . . . . . 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 3095 | . . . . 5 ⊢ ((𝐽 ∈ Top ∧ 𝑥 ∈ 𝐽) → ∀𝑘 ∈ 𝒫 ∪ 𝐽((𝐽 ↾t 𝑘) ∈ Comp → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘))) |
8 | 7 | ex 416 | . . . 4 ⊢ (𝐽 ∈ Top → (𝑥 ∈ 𝐽 → ∀𝑘 ∈ 𝒫 ∪ 𝐽((𝐽 ↾t 𝑘) ∈ Comp → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘)))) |
9 | 2, 8 | jcad 516 | . . 3 ⊢ (𝐽 ∈ Top → (𝑥 ∈ 𝐽 → (𝑥 ⊆ ∪ 𝐽 ∧ ∀𝑘 ∈ 𝒫 ∪ 𝐽((𝐽 ↾t 𝑘) ∈ Comp → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘))))) |
10 | toptopon2 21769 | . . . 4 ⊢ (𝐽 ∈ Top ↔ 𝐽 ∈ (TopOn‘∪ 𝐽)) | |
11 | elkgen 22387 | . . . 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 220 | . . 3 ⊢ (𝐽 ∈ Top → (𝑥 ∈ (𝑘Gen‘𝐽) ↔ (𝑥 ⊆ ∪ 𝐽 ∧ ∀𝑘 ∈ 𝒫 ∪ 𝐽((𝐽 ↾t 𝑘) ∈ Comp → (𝑥 ∩ 𝑘) ∈ (𝐽 ↾t 𝑘))))) |
13 | 9, 12 | sylibrd 262 | . 2 ⊢ (𝐽 ∈ Top → (𝑥 ∈ 𝐽 → 𝑥 ∈ (𝑘Gen‘𝐽))) |
14 | 13 | ssrdv 3893 | 1 ⊢ (𝐽 ∈ Top → 𝐽 ⊆ (𝑘Gen‘𝐽)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 ∈ wcel 2112 ∀wral 3051 ∩ cin 3852 ⊆ wss 3853 𝒫 cpw 4499 ∪ cuni 4805 ‘cfv 6358 (class class class)co 7191 ↾t crest 16879 Topctop 21744 TopOnctopon 21761 Compccmp 22237 𝑘Genckgen 22384 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2708 ax-rep 5164 ax-sep 5177 ax-nul 5184 ax-pow 5243 ax-pr 5307 ax-un 7501 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2728 df-clel 2809 df-nfc 2879 df-ne 2933 df-ral 3056 df-rex 3057 df-reu 3058 df-rab 3060 df-v 3400 df-sbc 3684 df-csb 3799 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-nul 4224 df-if 4426 df-pw 4501 df-sn 4528 df-pr 4530 df-op 4534 df-uni 4806 df-iun 4892 df-br 5040 df-opab 5102 df-mpt 5121 df-id 5440 df-xp 5542 df-rel 5543 df-cnv 5544 df-co 5545 df-dm 5546 df-rn 5547 df-res 5548 df-ima 5549 df-iota 6316 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-ov 7194 df-oprab 7195 df-mpo 7196 df-rest 16881 df-top 21745 df-topon 21762 df-kgen 22385 |
This theorem is referenced by: kgenhaus 22395 kgencmp 22396 kgencmp2 22397 kgenidm 22398 iskgen2 22399 kgencn3 22409 kgen2cn 22410 |
Copyright terms: Public domain | W3C validator |