Theorem omlspjN 33566

Description: Contraction of a Sasaki projection. (Contributed by NM, 6-Dec-2013.) (New usage is discouraged.)

Hypotheses

Ref	Expression
omlspj.b	⊢ 𝐵 = (Base‘𝐾)
omlspj.l	⊢ ≤ = (le‘𝐾)
omlspj.j	⊢ ∨ = (join‘𝐾)
omlspj.m	⊢ ∧ = (meet‘𝐾)
omlspj.o	⊢ ⊥ = (oc‘𝐾)

Assertion

Ref	Expression
omlspjN	⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → ((𝑋 ∨ ( ⊥ ‘𝑌)) ∧ 𝑌) = 𝑋)

Proof of Theorem omlspjN

Step	Hyp	Ref	Expression
1		omllat 33547	. . . . . 6 ⊢ (𝐾 ∈ OML → 𝐾 ∈ Lat)
2	1	3ad2ant1 1075	. . . . 5 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝐾 ∈ Lat)
3		omlop 33546	. . . . . . 7 ⊢ (𝐾 ∈ OML → 𝐾 ∈ OP)
4	3	3ad2ant1 1075	. . . . . 6 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝐾 ∈ OP)
5		simp2r 1081	. . . . . 6 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝑌 ∈ 𝐵)
6		omlspj.b	. . . . . . 7 ⊢ 𝐵 = (Base‘𝐾)
7		omlspj.o	. . . . . . 7 ⊢ ⊥ = (oc‘𝐾)
8	6, 7	opoccl 33499	. . . . . 6 ⊢ ((𝐾 ∈ OP ∧ 𝑌 ∈ 𝐵) → ( ⊥ ‘𝑌) ∈ 𝐵)
9	4, 5, 8	syl2anc 691	. . . . 5 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → ( ⊥ ‘𝑌) ∈ 𝐵)
10		omlspj.m	. . . . . 6 ⊢ ∧ = (meet‘𝐾)
11	6, 10	latmcom 16898	. . . . 5 ⊢ ((𝐾 ∈ Lat ∧ ( ⊥ ‘𝑌) ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (( ⊥ ‘𝑌) ∧ 𝑌) = (𝑌 ∧ ( ⊥ ‘𝑌)))
12	2, 9, 5, 11	syl3anc 1318	. . . 4 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (( ⊥ ‘𝑌) ∧ 𝑌) = (𝑌 ∧ ( ⊥ ‘𝑌)))
13		eqid 2610	. . . . . 6 ⊢ (0.‘𝐾) = (0.‘𝐾)
14	6, 7, 10, 13	opnoncon 33513	. . . . 5 ⊢ ((𝐾 ∈ OP ∧ 𝑌 ∈ 𝐵) → (𝑌 ∧ ( ⊥ ‘𝑌)) = (0.‘𝐾))
15	4, 5, 14	syl2anc 691	. . . 4 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (𝑌 ∧ ( ⊥ ‘𝑌)) = (0.‘𝐾))
16	12, 15	eqtrd 2644	. . 3 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (( ⊥ ‘𝑌) ∧ 𝑌) = (0.‘𝐾))
17	16	oveq2d 6565	. 2 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (𝑋 ∨ (( ⊥ ‘𝑌) ∧ 𝑌)) = (𝑋 ∨ (0.‘𝐾)))
18		simp1 1054	. . 3 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝐾 ∈ OML)
19		simp2l 1080	. . 3 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝑋 ∈ 𝐵)
20		simp3 1056	. . 3 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝑋 ≤ 𝑌)
21		eqid 2610	. . . . . 6 ⊢ (cm‘𝐾) = (cm‘𝐾)
22	6, 21	cmtidN 33562	. . . . 5 ⊢ ((𝐾 ∈ OML ∧ 𝑌 ∈ 𝐵) → 𝑌(cm‘𝐾)𝑌)
23	18, 5, 22	syl2anc 691	. . . 4 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝑌(cm‘𝐾)𝑌)
24	6, 7, 21	cmt3N 33556	. . . . 5 ⊢ ((𝐾 ∈ OML ∧ 𝑌 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑌(cm‘𝐾)𝑌 ↔ ( ⊥ ‘𝑌)(cm‘𝐾)𝑌))
25	18, 5, 5, 24	syl3anc 1318	. . . 4 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (𝑌(cm‘𝐾)𝑌 ↔ ( ⊥ ‘𝑌)(cm‘𝐾)𝑌))
26	23, 25	mpbid 221	. . 3 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → ( ⊥ ‘𝑌)(cm‘𝐾)𝑌)
27		omlspj.l	. . . 4 ⊢ ≤ = (le‘𝐾)
28		omlspj.j	. . . 4 ⊢ ∨ = (join‘𝐾)
29	6, 27, 28, 10, 21	omlmod1i2N 33565	. . 3 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ ( ⊥ ‘𝑌) ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ (𝑋 ≤ 𝑌 ∧ ( ⊥ ‘𝑌)(cm‘𝐾)𝑌)) → (𝑋 ∨ (( ⊥ ‘𝑌) ∧ 𝑌)) = ((𝑋 ∨ ( ⊥ ‘𝑌)) ∧ 𝑌))
30	18, 19, 9, 5, 20, 26, 29	syl132anc 1336	. 2 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (𝑋 ∨ (( ⊥ ‘𝑌) ∧ 𝑌)) = ((𝑋 ∨ ( ⊥ ‘𝑌)) ∧ 𝑌))
31		omlol 33545	. . . 4 ⊢ (𝐾 ∈ OML → 𝐾 ∈ OL)
32	31	3ad2ant1 1075	. . 3 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝐾 ∈ OL)
33	6, 28, 13	olj01 33530	. . 3 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → (𝑋 ∨ (0.‘𝐾)) = 𝑋)
34	32, 19, 33	syl2anc 691	. 2 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (𝑋 ∨ (0.‘𝐾)) = 𝑋)
35	17, 30, 34	3eqtr3d 2652	1 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → ((𝑋 ∨ ( ⊥ ‘𝑌)) ∧ 𝑌) = 𝑋)

Syntax hints:   → wi 4   ↔ wb 195   ∧ wa 383   ∧ w3a 1031   = wceq 1475   ∈ wcel 1977   class class class wbr 4583  ‘cfv 5804  (class class class)co 6549  Basecbs 15695  lecple 15775  occoc 15776  joincjn 16767  meetcmee 16768  0.cp0 16860  Latclat 16868  OPcops 33477  cmccmtN 33478  OLcol 33479  OMLcoml 33480

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-rep 4699  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847

This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-ral 2901  df-rex 2902  df-reu 2903  df-rab 2905  df-v 3175  df-sbc 3403  df-csb 3500  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-op 4132  df-uni 4373  df-iun 4457  df-br 4584  df-opab 4644  df-mpt 4645  df-id 4953  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-f1 5809  df-fo 5810  df-f1o 5811  df-fv 5812  df-riota 6511  df-ov 6552  df-oprab 6553  df-preset 16751  df-poset 16769  df-lub 16797  df-glb 16798  df-join 16799  df-meet 16800  df-p0 16862  df-lat 16869  df-oposet 33481  df-cmtN 33482  df-ol 33483  df-oml 33484

This theorem is referenced by:  doca2N  35433  djajN  35444