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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 2769 | . . 3 ⊢ (lub‘𝐾) = (lub‘𝐾) | |
| 3 | clatglbcl.g | . . 3 ⊢ 𝐺 = (glb‘𝐾) | |
| 4 | 1, 2, 3 | clatlem 18558 | . 2 ⊢ ((𝐾 ∈ CLat ∧ 𝑆 ⊆ 𝐵) → (((lub‘𝐾)‘𝑆) ∈ 𝐵 ∧ (𝐺‘𝑆) ∈ 𝐵)) |
| 5 | 4 | simprd 500 | 1 ⊢ ((𝐾 ∈ CLat ∧ 𝑆 ⊆ 𝐵) → (𝐺‘𝑆) ∈ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1567 ∈ wcel 2149 ⊆ wss 3913 ‘cfv 6537 Basecbs 17269 lubclub 18365 glbcglb 18366 CLatccla 18554 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-rep 5242 ax-sep 5261 ax-nul 5271 ax-pow 5337 ax-pr 5405 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-ral 3086 df-rex 3096 df-rmo 3376 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-iun 4962 df-br 5114 df-opab 5178 df-mpt 5197 df-id 5557 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7368 df-lub 18400 df-glb 18401 df-clat 18555 |
| This theorem is referenced by: clatleglb 18574 clatglbss 18575 clatp0cl 33237 pmapglbx 40433 diaglbN 41719 diaintclN 41722 dibglbN 41830 dibintclN 41831 dihglblem2N 41958 dihglblem3N 41959 dihglblem4 41961 dihglbcpreN 41964 dihglblem6 42004 dihintcl 42008 dochval2 42016 dochcl 42017 dochvalr 42021 dochss 42029 |
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