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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 2735 | . . 3 ⊢ (lub‘𝐾) = (lub‘𝐾) | |
| 3 | clatglbcl.g | . . 3 ⊢ 𝐺 = (glb‘𝐾) | |
| 4 | 1, 2, 3 | clatlem 18457 | . 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 1542 ∈ wcel 2114 ⊆ wss 3885 ‘cfv 6487 Basecbs 17168 lubclub 18264 glbcglb 18265 CLatccla 18453 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2184 ax-ext 2707 ax-rep 5201 ax-sep 5220 ax-nul 5230 ax-pow 5296 ax-pr 5364 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2538 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2810 df-nfc 2884 df-ne 2931 df-ral 3050 df-rex 3060 df-rmo 3340 df-reu 3341 df-rab 3388 df-v 3429 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4841 df-iun 4925 df-br 5075 df-opab 5137 df-mpt 5156 df-id 5515 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-iota 6443 df-fun 6489 df-fn 6490 df-f 6491 df-f1 6492 df-fo 6493 df-f1o 6494 df-fv 6495 df-riota 7313 df-lub 18299 df-glb 18300 df-clat 18454 |
| This theorem is referenced by: clatleglb 18473 clatglbss 18474 clatp0cl 33024 pmapglbx 40203 diaglbN 41489 diaintclN 41492 dibglbN 41600 dibintclN 41601 dihglblem2N 41728 dihglblem3N 41729 dihglblem4 41731 dihglbcpreN 41734 dihglblem6 41774 dihintcl 41778 dochval2 41786 dochcl 41787 dochvalr 41791 dochss 41799 |
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