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Mirrors > Home > MPE Home > Th. List > Mathboxes > topclat | Structured version Visualization version GIF version |
Description: A topology is a complete lattice under inclusion. (Contributed by Zhi Wang, 30-Sep-2024.) |
Ref | Expression |
---|---|
topclat.i | ⊢ 𝐼 = (toInc‘𝐽) |
Ref | Expression |
---|---|
topclat | ⊢ (𝐽 ∈ Top → 𝐼 ∈ CLat) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | topclat.i | . . 3 ⊢ 𝐼 = (toInc‘𝐽) | |
2 | 1 | ipobas 18346 | . 2 ⊢ (𝐽 ∈ Top → 𝐽 = (Base‘𝐼)) |
3 | eqidd 2737 | . 2 ⊢ (𝐽 ∈ Top → (lub‘𝐼) = (lub‘𝐼)) | |
4 | eqidd 2737 | . 2 ⊢ (𝐽 ∈ Top → (glb‘𝐼) = (glb‘𝐼)) | |
5 | 1 | ipopos 18351 | . . 3 ⊢ 𝐼 ∈ Poset |
6 | 5 | a1i 11 | . 2 ⊢ (𝐽 ∈ Top → 𝐼 ∈ Poset) |
7 | uniopn 22152 | . . 3 ⊢ ((𝐽 ∈ Top ∧ 𝑥 ⊆ 𝐽) → ∪ 𝑥 ∈ 𝐽) | |
8 | simpl 483 | . . . 4 ⊢ ((𝐽 ∈ Top ∧ 𝑥 ⊆ 𝐽) → 𝐽 ∈ Top) | |
9 | simpr 485 | . . . 4 ⊢ ((𝐽 ∈ Top ∧ 𝑥 ⊆ 𝐽) → 𝑥 ⊆ 𝐽) | |
10 | eqidd 2737 | . . . 4 ⊢ ((𝐽 ∈ Top ∧ 𝑥 ⊆ 𝐽) → (lub‘𝐼) = (lub‘𝐼)) | |
11 | intmin 4916 | . . . . . 6 ⊢ (∪ 𝑥 ∈ 𝐽 → ∩ {𝑦 ∈ 𝐽 ∣ ∪ 𝑥 ⊆ 𝑦} = ∪ 𝑥) | |
12 | 11 | eqcomd 2742 | . . . . 5 ⊢ (∪ 𝑥 ∈ 𝐽 → ∪ 𝑥 = ∩ {𝑦 ∈ 𝐽 ∣ ∪ 𝑥 ⊆ 𝑦}) |
13 | 7, 12 | syl 17 | . . . 4 ⊢ ((𝐽 ∈ Top ∧ 𝑥 ⊆ 𝐽) → ∪ 𝑥 = ∩ {𝑦 ∈ 𝐽 ∣ ∪ 𝑥 ⊆ 𝑦}) |
14 | 1, 8, 9, 10, 13 | ipolubdm 46633 | . . 3 ⊢ ((𝐽 ∈ Top ∧ 𝑥 ⊆ 𝐽) → (𝑥 ∈ dom (lub‘𝐼) ↔ ∪ 𝑥 ∈ 𝐽)) |
15 | 7, 14 | mpbird 256 | . 2 ⊢ ((𝐽 ∈ Top ∧ 𝑥 ⊆ 𝐽) → 𝑥 ∈ dom (lub‘𝐼)) |
16 | ssrab2 4025 | . . . 4 ⊢ {𝑦 ∈ 𝐽 ∣ 𝑦 ⊆ ∩ 𝑥} ⊆ 𝐽 | |
17 | uniopn 22152 | . . . 4 ⊢ ((𝐽 ∈ Top ∧ {𝑦 ∈ 𝐽 ∣ 𝑦 ⊆ ∩ 𝑥} ⊆ 𝐽) → ∪ {𝑦 ∈ 𝐽 ∣ 𝑦 ⊆ ∩ 𝑥} ∈ 𝐽) | |
18 | 8, 16, 17 | sylancl 586 | . . 3 ⊢ ((𝐽 ∈ Top ∧ 𝑥 ⊆ 𝐽) → ∪ {𝑦 ∈ 𝐽 ∣ 𝑦 ⊆ ∩ 𝑥} ∈ 𝐽) |
19 | eqidd 2737 | . . . 4 ⊢ ((𝐽 ∈ Top ∧ 𝑥 ⊆ 𝐽) → (glb‘𝐼) = (glb‘𝐼)) | |
20 | eqidd 2737 | . . . 4 ⊢ ((𝐽 ∈ Top ∧ 𝑥 ⊆ 𝐽) → ∪ {𝑦 ∈ 𝐽 ∣ 𝑦 ⊆ ∩ 𝑥} = ∪ {𝑦 ∈ 𝐽 ∣ 𝑦 ⊆ ∩ 𝑥}) | |
21 | 1, 8, 9, 19, 20 | ipoglbdm 46636 | . . 3 ⊢ ((𝐽 ∈ Top ∧ 𝑥 ⊆ 𝐽) → (𝑥 ∈ dom (glb‘𝐼) ↔ ∪ {𝑦 ∈ 𝐽 ∣ 𝑦 ⊆ ∩ 𝑥} ∈ 𝐽)) |
22 | 18, 21 | mpbird 256 | . 2 ⊢ ((𝐽 ∈ Top ∧ 𝑥 ⊆ 𝐽) → 𝑥 ∈ dom (glb‘𝐼)) |
23 | 2, 3, 4, 6, 15, 22 | isclatd 46629 | 1 ⊢ (𝐽 ∈ Top → 𝐼 ∈ CLat) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 396 = wceq 1540 ∈ wcel 2105 {crab 3403 ⊆ wss 3898 ∪ cuni 4852 ∩ cint 4894 dom cdm 5620 ‘cfv 6479 Posetcpo 18122 lubclub 18124 glbcglb 18125 CLatccla 18313 toInccipo 18342 Topctop 22148 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2707 ax-rep 5229 ax-sep 5243 ax-nul 5250 ax-pow 5308 ax-pr 5372 ax-un 7650 ax-cnex 11028 ax-resscn 11029 ax-1cn 11030 ax-icn 11031 ax-addcl 11032 ax-addrcl 11033 ax-mulcl 11034 ax-mulrcl 11035 ax-mulcom 11036 ax-addass 11037 ax-mulass 11038 ax-distr 11039 ax-i2m1 11040 ax-1ne0 11041 ax-1rid 11042 ax-rnegex 11043 ax-rrecex 11044 ax-cnre 11045 ax-pre-lttri 11046 ax-pre-lttrn 11047 ax-pre-ltadd 11048 ax-pre-mulgt0 11049 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2886 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3349 df-reu 3350 df-rab 3404 df-v 3443 df-sbc 3728 df-csb 3844 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3917 df-nul 4270 df-if 4474 df-pw 4549 df-sn 4574 df-pr 4576 df-op 4580 df-uni 4853 df-int 4895 df-iun 4943 df-br 5093 df-opab 5155 df-mpt 5176 df-tr 5210 df-id 5518 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5575 df-we 5577 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6238 df-ord 6305 df-on 6306 df-lim 6307 df-suc 6308 df-iota 6431 df-fun 6481 df-fn 6482 df-f 6483 df-f1 6484 df-fo 6485 df-f1o 6486 df-fv 6487 df-riota 7293 df-ov 7340 df-oprab 7341 df-mpo 7342 df-om 7781 df-1st 7899 df-2nd 7900 df-frecs 8167 df-wrecs 8198 df-recs 8272 df-rdg 8311 df-1o 8367 df-er 8569 df-en 8805 df-dom 8806 df-sdom 8807 df-fin 8808 df-pnf 11112 df-mnf 11113 df-xr 11114 df-ltxr 11115 df-le 11116 df-sub 11308 df-neg 11309 df-nn 12075 df-2 12137 df-3 12138 df-4 12139 df-5 12140 df-6 12141 df-7 12142 df-8 12143 df-9 12144 df-n0 12335 df-z 12421 df-dec 12539 df-uz 12684 df-fz 13341 df-struct 16945 df-slot 16980 df-ndx 16992 df-base 17010 df-tset 17078 df-ple 17079 df-ocomp 17080 df-proset 18110 df-poset 18128 df-lub 18161 df-glb 18162 df-clat 18314 df-ipo 18343 df-top 22149 |
This theorem is referenced by: topdlat 46650 |
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