atmod4i2 - Mathbox for Norm Megill

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Theorem atmod4i2 39426

Description: Version of modular law that holds in a Hilbert lattice, when one element is an atom. (Contributed by NM, 4-Jun-2012.) (Revised by Mario Carneiro, 10-Mar-2013.)

**Hypotheses**
Ref	Expression
atmod.b	⊢ 𝐵 = (Base‘𝐾)
atmod.l	⊢ ≤ = (le‘𝐾)
atmod.j	⊢ ∨ = (join‘𝐾)
atmod.m	⊢ ∧ = (meet‘𝐾)
atmod.a	⊢ 𝐴 = (Atoms‘𝐾)

**Assertion**
Ref	Expression
atmod4i2	⊢ ((𝐾 ∈ HL ∧ (𝑃 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → ((𝑃 ∧ 𝑌) ∨ 𝑋) = ((𝑃 ∨ 𝑋) ∧ 𝑌))

**Proof of Theorem atmod4i2**
Step	Hyp	Ref	Expression
1		hllat 38921	. . . 4 ⊢ (𝐾 ∈ HL → 𝐾 ∈ Lat)
2	1	3ad2ant1 1130	. . 3 ⊢ ((𝐾 ∈ HL ∧ (𝑃 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝐾 ∈ Lat)
3		simp21 1203	. . . . 5 ⊢ ((𝐾 ∈ HL ∧ (𝑃 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝑃 ∈ 𝐴)
4		atmod.b	. . . . . 6 ⊢ 𝐵 = (Base‘𝐾)
5		atmod.a	. . . . . 6 ⊢ 𝐴 = (Atoms‘𝐾)
6	4, 5	atbase 38847	. . . . 5 ⊢ (𝑃 ∈ 𝐴 → 𝑃 ∈ 𝐵)
7	3, 6	syl 17	. . . 4 ⊢ ((𝐾 ∈ HL ∧ (𝑃 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝑃 ∈ 𝐵)
8		simp23 1205	. . . 4 ⊢ ((𝐾 ∈ HL ∧ (𝑃 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝑌 ∈ 𝐵)
9		atmod.m	. . . . 5 ⊢ ∧ = (meet‘𝐾)
10	4, 9	latmcl 18432	. . . 4 ⊢ ((𝐾 ∈ Lat ∧ 𝑃 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑃 ∧ 𝑌) ∈ 𝐵)
11	2, 7, 8, 10	syl3anc 1368	. . 3 ⊢ ((𝐾 ∈ HL ∧ (𝑃 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (𝑃 ∧ 𝑌) ∈ 𝐵)
12		simp22 1204	. . 3 ⊢ ((𝐾 ∈ HL ∧ (𝑃 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝑋 ∈ 𝐵)
13		atmod.j	. . . 4 ⊢ ∨ = (join‘𝐾)
14	4, 13	latjcom 18439	. . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑃 ∧ 𝑌) ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → ((𝑃 ∧ 𝑌) ∨ 𝑋) = (𝑋 ∨ (𝑃 ∧ 𝑌)))
15	2, 11, 12, 14	syl3anc 1368	. 2 ⊢ ((𝐾 ∈ HL ∧ (𝑃 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → ((𝑃 ∧ 𝑌) ∨ 𝑋) = (𝑋 ∨ (𝑃 ∧ 𝑌)))
16		atmod.l	. . 3 ⊢ ≤ = (le‘𝐾)
17	4, 16, 13, 9, 5	atmod1i2 39418	. 2 ⊢ ((𝐾 ∈ HL ∧ (𝑃 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (𝑋 ∨ (𝑃 ∧ 𝑌)) = ((𝑋 ∨ 𝑃) ∧ 𝑌))
18	4, 13	latjcom 18439	. . . 4 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑃 ∈ 𝐵) → (𝑋 ∨ 𝑃) = (𝑃 ∨ 𝑋))
19	2, 12, 7, 18	syl3anc 1368	. . 3 ⊢ ((𝐾 ∈ HL ∧ (𝑃 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (𝑋 ∨ 𝑃) = (𝑃 ∨ 𝑋))
20	19	oveq1d 7432	. 2 ⊢ ((𝐾 ∈ HL ∧ (𝑃 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → ((𝑋 ∨ 𝑃) ∧ 𝑌) = ((𝑃 ∨ 𝑋) ∧ 𝑌))
21	15, 17, 20	3eqtrd 2769	1 ⊢ ((𝐾 ∈ HL ∧ (𝑃 ∈ 𝐴 ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → ((𝑃 ∧ 𝑌) ∨ 𝑋) = ((𝑃 ∨ 𝑋) ∧ 𝑌))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ w3a 1084 = wceq 1533 ∈ wcel 2098 class class class wbr 5148 ‘cfv 6547 (class class class)co 7417 Basecbs 17180 lecple 17240 joincjn 18303 meetcmee 18304 Latclat 18423 Atomscatm 38821 HLchlt 38908

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2696 ax-rep 5285 ax-sep 5299 ax-nul 5306 ax-pow 5364 ax-pr 5428 ax-un 7739

This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2528 df-eu 2557 df-clab 2703 df-cleq 2717 df-clel 2802 df-nfc 2877 df-ne 2931 df-ral 3052 df-rex 3061 df-rmo 3364 df-reu 3365 df-rab 3420 df-v 3465 df-sbc 3775 df-csb 3891 df-dif 3948 df-un 3950 df-in 3952 df-ss 3962 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4909 df-iun 4998 df-iin 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-id 5575 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-iota 6499 df-fun 6549 df-fn 6550 df-f 6551 df-f1 6552 df-fo 6553 df-f1o 6554 df-fv 6555 df-riota 7373 df-ov 7420 df-oprab 7421 df-mpo 7422 df-1st 7992 df-2nd 7993 df-proset 18287 df-poset 18305 df-plt 18322 df-lub 18338 df-glb 18339 df-join 18340 df-meet 18341 df-p0 18417 df-lat 18424 df-clat 18491 df-oposet 38734 df-ol 38736 df-oml 38737 df-covers 38824 df-ats 38825 df-atl 38856 df-cvlat 38880 df-hlat 38909 df-psubsp 39062 df-pmap 39063 df-padd 39355

This theorem is referenced by: lhp2at0 39591 lhpelim 39596 cdleme2 39787 cdleme35d 40011 cdlemeg46frv 40084 cdlemg2fv2 40159 cdlemg2m 40163 cdlemg10bALTN 40195 cdlemh2 40375 cdlemk9 40398 cdlemk9bN 40399

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