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| Mirrors > Home > MPE Home > Th. List > clatglbcl | Structured version Visualization version GIF version | ||
| Description: Any subset of the base set has a GLB in a complete lattice. (Contributed by NM, 14-Sep-2011.) |
| Ref | Expression |
|---|---|
| clatglbcl.b | ⊢ 𝐵 = (Base‘𝐾) |
| clatglbcl.g | ⊢ 𝐺 = (glb‘𝐾) |
| Ref | Expression |
|---|---|
| clatglbcl | ⊢ ((𝐾 ∈ CLat ∧ 𝑆 ⊆ 𝐵) → (𝐺‘𝑆) ∈ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | clatglbcl.b | . . 3 ⊢ 𝐵 = (Base‘𝐾) | |
| 2 | eqid 2729 | . . 3 ⊢ (lub‘𝐾) = (lub‘𝐾) | |
| 3 | clatglbcl.g | . . 3 ⊢ 𝐺 = (glb‘𝐾) | |
| 4 | 1, 2, 3 | clatlem 18408 | . 2 ⊢ ((𝐾 ∈ CLat ∧ 𝑆 ⊆ 𝐵) → (((lub‘𝐾)‘𝑆) ∈ 𝐵 ∧ (𝐺‘𝑆) ∈ 𝐵)) |
| 5 | 4 | simprd 495 | 1 ⊢ ((𝐾 ∈ CLat ∧ 𝑆 ⊆ 𝐵) → (𝐺‘𝑆) ∈ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1540 ∈ wcel 2109 ⊆ wss 3903 ‘cfv 6482 Basecbs 17120 lubclub 18215 glbcglb 18216 CLatccla 18404 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-rep 5218 ax-sep 5235 ax-nul 5245 ax-pow 5304 ax-pr 5371 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-ral 3045 df-rex 3054 df-rmo 3343 df-reu 3344 df-rab 3395 df-v 3438 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4859 df-iun 4943 df-br 5093 df-opab 5155 df-mpt 5174 df-id 5514 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-rn 5630 df-res 5631 df-ima 5632 df-iota 6438 df-fun 6484 df-fn 6485 df-f 6486 df-f1 6487 df-fo 6488 df-f1o 6489 df-fv 6490 df-riota 7306 df-lub 18250 df-glb 18251 df-clat 18405 |
| This theorem is referenced by: clatleglb 18424 clatglbss 18425 clatp0cl 32918 pmapglbx 39748 diaglbN 41034 diaintclN 41037 dibglbN 41145 dibintclN 41146 dihglblem2N 41273 dihglblem3N 41274 dihglblem4 41276 dihglbcpreN 41279 dihglblem6 41319 dihintcl 41323 dochval2 41331 dochcl 41332 dochvalr 41336 dochss 41344 |
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