Theorem omlspjN 36412

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 36393	. . . . . 6 ⊢ (𝐾 ∈ OML → 𝐾 ∈ Lat)
2	1	3ad2ant1 1129	. . . . 5 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝐾 ∈ Lat)
3		omlop 36392	. . . . . . 7 ⊢ (𝐾 ∈ OML → 𝐾 ∈ OP)
4	3	3ad2ant1 1129	. . . . . 6 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝐾 ∈ OP)
5		simp2r 1196	. . . . . 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 36345	. . . . . 6 ⊢ ((𝐾 ∈ OP ∧ 𝑌 ∈ 𝐵) → ( ⊥ ‘𝑌) ∈ 𝐵)
9	4, 5, 8	syl2anc 586	. . . . 5 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → ( ⊥ ‘𝑌) ∈ 𝐵)
10		omlspj.m	. . . . . 6 ⊢ ∧ = (meet‘𝐾)
11	6, 10	latmcom 17685	. . . . 5 ⊢ ((𝐾 ∈ Lat ∧ ( ⊥ ‘𝑌) ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (( ⊥ ‘𝑌) ∧ 𝑌) = (𝑌 ∧ ( ⊥ ‘𝑌)))
12	2, 9, 5, 11	syl3anc 1367	. . . 4 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (( ⊥ ‘𝑌) ∧ 𝑌) = (𝑌 ∧ ( ⊥ ‘𝑌)))
13		eqid 2821	. . . . . 6 ⊢ (0.‘𝐾) = (0.‘𝐾)
14	6, 7, 10, 13	opnoncon 36359	. . . . 5 ⊢ ((𝐾 ∈ OP ∧ 𝑌 ∈ 𝐵) → (𝑌 ∧ ( ⊥ ‘𝑌)) = (0.‘𝐾))
15	4, 5, 14	syl2anc 586	. . . 4 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (𝑌 ∧ ( ⊥ ‘𝑌)) = (0.‘𝐾))
16	12, 15	eqtrd 2856	. . 3 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (( ⊥ ‘𝑌) ∧ 𝑌) = (0.‘𝐾))
17	16	oveq2d 7172	. 2 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (𝑋 ∨ (( ⊥ ‘𝑌) ∧ 𝑌)) = (𝑋 ∨ (0.‘𝐾)))
18		simp1 1132	. . 3 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝐾 ∈ OML)
19		simp2l 1195	. . 3 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝑋 ∈ 𝐵)
20		simp3 1134	. . 3 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝑋 ≤ 𝑌)
21		eqid 2821	. . . . . 6 ⊢ (cm‘𝐾) = (cm‘𝐾)
22	6, 21	cmtidN 36408	. . . . 5 ⊢ ((𝐾 ∈ OML ∧ 𝑌 ∈ 𝐵) → 𝑌(cm‘𝐾)𝑌)
23	18, 5, 22	syl2anc 586	. . . 4 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝑌(cm‘𝐾)𝑌)
24	6, 7, 21	cmt3N 36402	. . . . 5 ⊢ ((𝐾 ∈ OML ∧ 𝑌 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑌(cm‘𝐾)𝑌 ↔ ( ⊥ ‘𝑌)(cm‘𝐾)𝑌))
25	18, 5, 5, 24	syl3anc 1367	. . . 4 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (𝑌(cm‘𝐾)𝑌 ↔ ( ⊥ ‘𝑌)(cm‘𝐾)𝑌))
26	23, 25	mpbid 234	. . 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 36411	. . 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 1384	. 2 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (𝑋 ∨ (( ⊥ ‘𝑌) ∧ 𝑌)) = ((𝑋 ∨ ( ⊥ ‘𝑌)) ∧ 𝑌))
31		omlol 36391	. . . 4 ⊢ (𝐾 ∈ OML → 𝐾 ∈ OL)
32	31	3ad2ant1 1129	. . 3 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → 𝐾 ∈ OL)
33	6, 28, 13	olj01 36376	. . 3 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → (𝑋 ∨ (0.‘𝐾)) = 𝑋)
34	32, 19, 33	syl2anc 586	. 2 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → (𝑋 ∨ (0.‘𝐾)) = 𝑋)
35	17, 30, 34	3eqtr3d 2864	1 ⊢ ((𝐾 ∈ OML ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) ∧ 𝑋 ≤ 𝑌) → ((𝑋 ∨ ( ⊥ ‘𝑌)) ∧ 𝑌) = 𝑋)

Syntax hints:   → wi 4   ↔ wb 208   ∧ wa 398   ∧ w3a 1083   = wceq 1537   ∈ wcel 2114   class class class wbr 5066  ‘cfv 6355  (class class class)co 7156  Basecbs 16483  lecple 16572  occoc 16573  joincjn 17554  meetcmee 17555  0.cp0 17647  Latclat 17655  OPcops 36323  cmccmtN 36324  OLcol 36325  OMLcoml 36326

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2793  ax-rep 5190  ax-sep 5203  ax-nul 5210  ax-pow 5266  ax-pr 5330  ax-un 7461

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1540  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-ral 3143  df-rex 3144  df-reu 3145  df-rab 3147  df-v 3496  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4839  df-iun 4921  df-br 5067  df-opab 5129  df-mpt 5147  df-id 5460  df-xp 5561  df-rel 5562  df-cnv 5563  df-co 5564  df-dm 5565  df-rn 5566  df-res 5567  df-ima 5568  df-iota 6314  df-fun 6357  df-fn 6358  df-f 6359  df-f1 6360  df-fo 6361  df-f1o 6362  df-fv 6363  df-riota 7114  df-ov 7159  df-oprab 7160  df-proset 17538  df-poset 17556  df-lub 17584  df-glb 17585  df-join 17586  df-meet 17587  df-p0 17649  df-lat 17656  df-oposet 36327  df-cmtN 36328  df-ol 36329  df-oml 36330

This theorem is referenced by:  doca2N  38277  djajN  38288