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Theorem oldmm1 34330
 Description: De Morgan's law for meet in an ortholattice. (chdmm1 28368 analog.) (Contributed by NM, 6-Nov-2011.)
Hypotheses
Ref Expression
oldmm1.b 𝐵 = (Base‘𝐾)
oldmm1.j = (join‘𝐾)
oldmm1.m = (meet‘𝐾)
oldmm1.o = (oc‘𝐾)
Assertion
Ref Expression
oldmm1 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ( ‘(𝑋 𝑌)) = (( 𝑋) ( 𝑌)))

Proof of Theorem oldmm1
StepHypRef Expression
1 oldmm1.b . 2 𝐵 = (Base‘𝐾)
2 eqid 2621 . 2 (le‘𝐾) = (le‘𝐾)
3 ollat 34326 . . 3 (𝐾 ∈ OL → 𝐾 ∈ Lat)
433ad2ant1 1081 . 2 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → 𝐾 ∈ Lat)
5 olop 34327 . . . 4 (𝐾 ∈ OL → 𝐾 ∈ OP)
653ad2ant1 1081 . . 3 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → 𝐾 ∈ OP)
7 oldmm1.m . . . . 5 = (meet‘𝐾)
81, 7latmcl 17046 . . . 4 ((𝐾 ∈ Lat ∧ 𝑋𝐵𝑌𝐵) → (𝑋 𝑌) ∈ 𝐵)
93, 8syl3an1 1358 . . 3 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → (𝑋 𝑌) ∈ 𝐵)
10 oldmm1.o . . . 4 = (oc‘𝐾)
111, 10opoccl 34307 . . 3 ((𝐾 ∈ OP ∧ (𝑋 𝑌) ∈ 𝐵) → ( ‘(𝑋 𝑌)) ∈ 𝐵)
126, 9, 11syl2anc 693 . 2 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ( ‘(𝑋 𝑌)) ∈ 𝐵)
131, 10opoccl 34307 . . . . 5 ((𝐾 ∈ OP ∧ 𝑋𝐵) → ( 𝑋) ∈ 𝐵)
145, 13sylan 488 . . . 4 ((𝐾 ∈ OL ∧ 𝑋𝐵) → ( 𝑋) ∈ 𝐵)
15143adant3 1080 . . 3 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ( 𝑋) ∈ 𝐵)
161, 10opoccl 34307 . . . . 5 ((𝐾 ∈ OP ∧ 𝑌𝐵) → ( 𝑌) ∈ 𝐵)
175, 16sylan 488 . . . 4 ((𝐾 ∈ OL ∧ 𝑌𝐵) → ( 𝑌) ∈ 𝐵)
18173adant2 1079 . . 3 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ( 𝑌) ∈ 𝐵)
19 oldmm1.j . . . 4 = (join‘𝐾)
201, 19latjcl 17045 . . 3 ((𝐾 ∈ Lat ∧ ( 𝑋) ∈ 𝐵 ∧ ( 𝑌) ∈ 𝐵) → (( 𝑋) ( 𝑌)) ∈ 𝐵)
214, 15, 18, 20syl3anc 1325 . 2 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → (( 𝑋) ( 𝑌)) ∈ 𝐵)
221, 2, 19latlej1 17054 . . . . . 6 ((𝐾 ∈ Lat ∧ ( 𝑋) ∈ 𝐵 ∧ ( 𝑌) ∈ 𝐵) → ( 𝑋)(le‘𝐾)(( 𝑋) ( 𝑌)))
234, 15, 18, 22syl3anc 1325 . . . . 5 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ( 𝑋)(le‘𝐾)(( 𝑋) ( 𝑌)))
24 simp2 1061 . . . . . 6 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → 𝑋𝐵)
251, 2, 10oplecon1b 34314 . . . . . 6 ((𝐾 ∈ OP ∧ 𝑋𝐵 ∧ (( 𝑋) ( 𝑌)) ∈ 𝐵) → (( 𝑋)(le‘𝐾)(( 𝑋) ( 𝑌)) ↔ ( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)𝑋))
266, 24, 21, 25syl3anc 1325 . . . . 5 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → (( 𝑋)(le‘𝐾)(( 𝑋) ( 𝑌)) ↔ ( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)𝑋))
2723, 26mpbid 222 . . . 4 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)𝑋)
281, 2, 19latlej2 17055 . . . . . 6 ((𝐾 ∈ Lat ∧ ( 𝑋) ∈ 𝐵 ∧ ( 𝑌) ∈ 𝐵) → ( 𝑌)(le‘𝐾)(( 𝑋) ( 𝑌)))
294, 15, 18, 28syl3anc 1325 . . . . 5 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ( 𝑌)(le‘𝐾)(( 𝑋) ( 𝑌)))
30 simp3 1062 . . . . . 6 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → 𝑌𝐵)
311, 2, 10oplecon1b 34314 . . . . . 6 ((𝐾 ∈ OP ∧ 𝑌𝐵 ∧ (( 𝑋) ( 𝑌)) ∈ 𝐵) → (( 𝑌)(le‘𝐾)(( 𝑋) ( 𝑌)) ↔ ( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)𝑌))
326, 30, 21, 31syl3anc 1325 . . . . 5 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → (( 𝑌)(le‘𝐾)(( 𝑋) ( 𝑌)) ↔ ( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)𝑌))
3329, 32mpbid 222 . . . 4 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)𝑌)
341, 10opoccl 34307 . . . . . 6 ((𝐾 ∈ OP ∧ (( 𝑋) ( 𝑌)) ∈ 𝐵) → ( ‘(( 𝑋) ( 𝑌))) ∈ 𝐵)
356, 21, 34syl2anc 693 . . . . 5 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ( ‘(( 𝑋) ( 𝑌))) ∈ 𝐵)
361, 2, 7latlem12 17072 . . . . 5 ((𝐾 ∈ Lat ∧ (( ‘(( 𝑋) ( 𝑌))) ∈ 𝐵𝑋𝐵𝑌𝐵)) → ((( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)𝑋 ∧ ( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)𝑌) ↔ ( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)(𝑋 𝑌)))
374, 35, 24, 30, 36syl13anc 1327 . . . 4 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ((( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)𝑋 ∧ ( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)𝑌) ↔ ( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)(𝑋 𝑌)))
3827, 33, 37mpbi2and 956 . . 3 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)(𝑋 𝑌))
391, 2, 10oplecon1b 34314 . . . 4 ((𝐾 ∈ OP ∧ (( 𝑋) ( 𝑌)) ∈ 𝐵 ∧ (𝑋 𝑌) ∈ 𝐵) → (( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)(𝑋 𝑌) ↔ ( ‘(𝑋 𝑌))(le‘𝐾)(( 𝑋) ( 𝑌))))
406, 21, 9, 39syl3anc 1325 . . 3 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → (( ‘(( 𝑋) ( 𝑌)))(le‘𝐾)(𝑋 𝑌) ↔ ( ‘(𝑋 𝑌))(le‘𝐾)(( 𝑋) ( 𝑌))))
4138, 40mpbid 222 . 2 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ( ‘(𝑋 𝑌))(le‘𝐾)(( 𝑋) ( 𝑌)))
421, 2, 7latmle1 17070 . . . . 5 ((𝐾 ∈ Lat ∧ 𝑋𝐵𝑌𝐵) → (𝑋 𝑌)(le‘𝐾)𝑋)
433, 42syl3an1 1358 . . . 4 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → (𝑋 𝑌)(le‘𝐾)𝑋)
441, 2, 10oplecon3b 34313 . . . . 5 ((𝐾 ∈ OP ∧ (𝑋 𝑌) ∈ 𝐵𝑋𝐵) → ((𝑋 𝑌)(le‘𝐾)𝑋 ↔ ( 𝑋)(le‘𝐾)( ‘(𝑋 𝑌))))
456, 9, 24, 44syl3anc 1325 . . . 4 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ((𝑋 𝑌)(le‘𝐾)𝑋 ↔ ( 𝑋)(le‘𝐾)( ‘(𝑋 𝑌))))
4643, 45mpbid 222 . . 3 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ( 𝑋)(le‘𝐾)( ‘(𝑋 𝑌)))
471, 2, 7latmle2 17071 . . . . 5 ((𝐾 ∈ Lat ∧ 𝑋𝐵𝑌𝐵) → (𝑋 𝑌)(le‘𝐾)𝑌)
483, 47syl3an1 1358 . . . 4 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → (𝑋 𝑌)(le‘𝐾)𝑌)
491, 2, 10oplecon3b 34313 . . . . 5 ((𝐾 ∈ OP ∧ (𝑋 𝑌) ∈ 𝐵𝑌𝐵) → ((𝑋 𝑌)(le‘𝐾)𝑌 ↔ ( 𝑌)(le‘𝐾)( ‘(𝑋 𝑌))))
506, 9, 30, 49syl3anc 1325 . . . 4 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ((𝑋 𝑌)(le‘𝐾)𝑌 ↔ ( 𝑌)(le‘𝐾)( ‘(𝑋 𝑌))))
5148, 50mpbid 222 . . 3 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ( 𝑌)(le‘𝐾)( ‘(𝑋 𝑌)))
521, 2, 19latjle12 17056 . . . 4 ((𝐾 ∈ Lat ∧ (( 𝑋) ∈ 𝐵 ∧ ( 𝑌) ∈ 𝐵 ∧ ( ‘(𝑋 𝑌)) ∈ 𝐵)) → ((( 𝑋)(le‘𝐾)( ‘(𝑋 𝑌)) ∧ ( 𝑌)(le‘𝐾)( ‘(𝑋 𝑌))) ↔ (( 𝑋) ( 𝑌))(le‘𝐾)( ‘(𝑋 𝑌))))
534, 15, 18, 12, 52syl13anc 1327 . . 3 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ((( 𝑋)(le‘𝐾)( ‘(𝑋 𝑌)) ∧ ( 𝑌)(le‘𝐾)( ‘(𝑋 𝑌))) ↔ (( 𝑋) ( 𝑌))(le‘𝐾)( ‘(𝑋 𝑌))))
5446, 51, 53mpbi2and 956 . 2 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → (( 𝑋) ( 𝑌))(le‘𝐾)( ‘(𝑋 𝑌)))
551, 2, 4, 12, 21, 41, 54latasymd 17051 1 ((𝐾 ∈ OL ∧ 𝑋𝐵𝑌𝐵) → ( ‘(𝑋 𝑌)) = (( 𝑋) ( 𝑌)))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ↔ wb 196   ∧ wa 384   ∧ w3a 1037   = wceq 1482   ∈ wcel 1989   class class class wbr 4651  ‘cfv 5886  (class class class)co 6647  Basecbs 15851  lecple 15942  occoc 15943  joincjn 16938  meetcmee 16939  Latclat 17039  OPcops 34285  OLcol 34287 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1721  ax-4 1736  ax-5 1838  ax-6 1887  ax-7 1934  ax-8 1991  ax-9 1998  ax-10 2018  ax-11 2033  ax-12 2046  ax-13 2245  ax-ext 2601  ax-rep 4769  ax-sep 4779  ax-nul 4787  ax-pow 4841  ax-pr 4904  ax-un 6946 This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1039  df-tru 1485  df-ex 1704  df-nf 1709  df-sb 1880  df-eu 2473  df-mo 2474  df-clab 2608  df-cleq 2614  df-clel 2617  df-nfc 2752  df-ne 2794  df-ral 2916  df-rex 2917  df-reu 2918  df-rab 2920  df-v 3200  df-sbc 3434  df-csb 3532  df-dif 3575  df-un 3577  df-in 3579  df-ss 3586  df-nul 3914  df-if 4085  df-pw 4158  df-sn 4176  df-pr 4178  df-op 4182  df-uni 4435  df-iun 4520  df-br 4652  df-opab 4711  df-mpt 4728  df-id 5022  df-xp 5118  df-rel 5119  df-cnv 5120  df-co 5121  df-dm 5122  df-rn 5123  df-res 5124  df-ima 5125  df-iota 5849  df-fun 5888  df-fn 5889  df-f 5890  df-f1 5891  df-fo 5892  df-f1o 5893  df-fv 5894  df-riota 6608  df-ov 6650  df-oprab 6651  df-preset 16922  df-poset 16940  df-lub 16968  df-glb 16969  df-join 16970  df-meet 16971  df-lat 17040  df-oposet 34289  df-ol 34291 This theorem is referenced by:  oldmm2  34331  oldmm3N  34332  cmtcomlemN  34361  cmtbr2N  34366  omlfh1N  34371  cvrexch  34532  lhpmod2i2  35150  lhpmod6i1  35151  doca2N  36241  djajN  36252
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