| Mathbox for Norm Megill |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > op0cl | Structured version Visualization version GIF version | ||
| Description: An orthoposet has a zero element. (h0elch 31344 analog.) (Contributed by NM, 12-Oct-2011.) |
| Ref | Expression |
|---|---|
| op0cl.b | ⊢ 𝐵 = (Base‘𝐾) |
| op0cl.z | ⊢ 0 = (0.‘𝐾) |
| Ref | Expression |
|---|---|
| op0cl | ⊢ (𝐾 ∈ OP → 0 ∈ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | op0cl.b | . . 3 ⊢ 𝐵 = (Base‘𝐾) | |
| 2 | eqid 2737 | . . 3 ⊢ (glb‘𝐾) = (glb‘𝐾) | |
| 3 | op0cl.z | . . 3 ⊢ 0 = (0.‘𝐾) | |
| 4 | 1, 2, 3 | p0val 18385 | . 2 ⊢ (𝐾 ∈ OP → 0 = ((glb‘𝐾)‘𝐵)) |
| 5 | id 22 | . . 3 ⊢ (𝐾 ∈ OP → 𝐾 ∈ OP) | |
| 6 | eqid 2737 | . . . . 5 ⊢ (lub‘𝐾) = (lub‘𝐾) | |
| 7 | 1, 6, 2 | op01dm 39646 | . . . 4 ⊢ (𝐾 ∈ OP → (𝐵 ∈ dom (lub‘𝐾) ∧ 𝐵 ∈ dom (glb‘𝐾))) |
| 8 | 7 | simprd 495 | . . 3 ⊢ (𝐾 ∈ OP → 𝐵 ∈ dom (glb‘𝐾)) |
| 9 | 1, 2, 5, 8 | glbcl 18328 | . 2 ⊢ (𝐾 ∈ OP → ((glb‘𝐾)‘𝐵) ∈ 𝐵) |
| 10 | 4, 9 | eqeltrd 2837 | 1 ⊢ (𝐾 ∈ OP → 0 ∈ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 dom cdm 5625 ‘cfv 6493 Basecbs 17173 lubclub 18269 glbcglb 18270 0.cp0 18381 OPcops 39635 |
| 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 2185 ax-ext 2709 ax-rep 5213 ax-sep 5232 ax-nul 5242 ax-pow 5303 ax-pr 5371 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5520 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7318 df-ov 7364 df-glb 18305 df-p0 18383 df-oposet 39639 |
| This theorem is referenced by: ople0 39650 lub0N 39652 opltn0 39653 opoc1 39665 opoc0 39666 olj01 39688 olj02 39689 olm01 39699 olm02 39700 0ltat 39754 leatb 39755 hlhgt2 39852 hl0lt1N 39853 hl2at 39868 atcvr0eq 39889 lnnat 39890 atle 39899 athgt 39919 1cvratex 39936 ps-2 39941 dalemcea 40123 pmapeq0 40229 2atm2atN 40248 lhp0lt 40466 lhpn0 40467 ltrnatb 40600 cdleme3c 40693 cdleme7e 40710 dia0eldmN 41503 dia2dimlem2 41528 dia2dimlem3 41529 dib0 41627 dih0 41743 dih0bN 41744 dih0rn 41747 dihlspsnssN 41795 dihlspsnat 41796 dihatexv 41801 |
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