| Mathbox for Norm Megill |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > olm12 | Structured version Visualization version GIF version | ||
| Description: The meet of an ortholattice element with one equals itself. (Contributed by NM, 22-May-2012.) |
| Ref | Expression |
|---|---|
| olm1.b | ⊢ 𝐵 = (Base‘𝐾) |
| olm1.m | ⊢ ∧ = (meet‘𝐾) |
| olm1.u | ⊢ 1 = (1.‘𝐾) |
| Ref | Expression |
|---|---|
| olm12 | ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → ( 1 ∧ 𝑋) = 𝑋) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ollat 40473 | . . . 4 ⊢ (𝐾 ∈ OL → 𝐾 ∈ Lat) | |
| 2 | 1 | adantr 486 | . . 3 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → 𝐾 ∈ Lat) |
| 3 | olop 40474 | . . . . 5 ⊢ (𝐾 ∈ OL → 𝐾 ∈ OP) | |
| 4 | 3 | adantr 486 | . . . 4 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → 𝐾 ∈ OP) |
| 5 | olm1.b | . . . . 5 ⊢ 𝐵 = (Base‘𝐾) | |
| 6 | olm1.u | . . . . 5 ⊢ 1 = (1.‘𝐾) | |
| 7 | 5, 6 | op1cl 40445 | . . . 4 ⊢ (𝐾 ∈ OP → 1 ∈ 𝐵) |
| 8 | 4, 7 | syl 18 | . . 3 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → 1 ∈ 𝐵) |
| 9 | simpr 490 | . . 3 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → 𝑋 ∈ 𝐵) | |
| 10 | olm1.m | . . . 4 ⊢ ∧ = (meet‘𝐾) | |
| 11 | 5, 10 | latmcom 18669 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ 1 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → ( 1 ∧ 𝑋) = (𝑋 ∧ 1 )) |
| 12 | 2, 8, 9, 11 | syl3anc 1399 | . 2 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → ( 1 ∧ 𝑋) = (𝑋 ∧ 1 )) |
| 13 | 5, 10, 6 | olm11 40487 | . 2 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → (𝑋 ∧ 1 ) = 𝑋) |
| 14 | 12, 13 | eqtrd 2798 | 1 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → ( 1 ∧ 𝑋) = 𝑋) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2147 ‘cfv 6561 (class class class)co 7446 Basecbs 17419 meetcmee 18518 1.cp1 18628 Latclat 18637 OPcops 40432 OLcol 40434 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5236 ax-sep 5253 ax-nul 5264 ax-pow 5332 ax-pr 5396 ax-un 7778 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-iun 4956 df-br 5107 df-opab 5172 df-mpt 5191 df-id 5551 df-xp 5662 df-rel 5663 df-cnv 5664 df-co 5665 df-dm 5666 df-rn 5667 df-res 5668 df-ima 5669 df-iota 6515 df-fun 6563 df-fn 6564 df-f 6565 df-f1 6566 df-fo 6567 df-f1o 6568 df-fv 6569 df-riota 7403 df-ov 7449 df-oprab 7450 df-proset 18500 df-poset 18519 df-lub 18550 df-glb 18551 df-join 18552 df-meet 18553 df-p0 18629 df-p1 18630 df-lat 18638 df-oposet 40436 df-ol 40438 |
| This theorem is used by: dih1 42546 dihjatc 42677 |
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