Theorem cdleme42c 36548

Description: Part of proof of Lemma E in [Crawley] p. 113. Match ¬ 𝑥 ≤ 𝑊. (Contributed by NM, 6-Mar-2013.)

Hypotheses

Ref	Expression
cdleme42.b	⊢ 𝐵 = (Base‘𝐾)
cdleme42.l	⊢ ≤ = (le‘𝐾)
cdleme42.j	⊢ ∨ = (join‘𝐾)
cdleme42.m	⊢ ∧ = (meet‘𝐾)
cdleme42.a	⊢ 𝐴 = (Atoms‘𝐾)
cdleme42.h	⊢ 𝐻 = (LHyp‘𝐾)
cdleme42.v	⊢ 𝑉 = ((𝑅 ∨ 𝑆) ∧ 𝑊)

Assertion

Ref	Expression
cdleme42c	⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → ¬ (𝑅 ∨ 𝑉) ≤ 𝑊)

Proof of Theorem cdleme42c

Step	Hyp	Ref	Expression
1		simp2r 1263	. 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → ¬ 𝑅 ≤ 𝑊)
2		simp1l 1260	. . . . 5 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → 𝐾 ∈ HL)
3	2	hllatd 35440	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → 𝐾 ∈ Lat)
4		simp2l 1262	. . . . 5 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → 𝑅 ∈ 𝐴)
5		cdleme42.b	. . . . . 6 ⊢ 𝐵 = (Base‘𝐾)
6		cdleme42.a	. . . . . 6 ⊢ 𝐴 = (Atoms‘𝐾)
7	5, 6	atbase 35365	. . . . 5 ⊢ (𝑅 ∈ 𝐴 → 𝑅 ∈ 𝐵)
8	4, 7	syl 17	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → 𝑅 ∈ 𝐵)
9		cdleme42.v	. . . . 5 ⊢ 𝑉 = ((𝑅 ∨ 𝑆) ∧ 𝑊)
10		simp3l 1264	. . . . . . 7 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → 𝑆 ∈ 𝐴)
11		cdleme42.j	. . . . . . . 8 ⊢ ∨ = (join‘𝐾)
12	5, 11, 6	hlatjcl 35443	. . . . . . 7 ⊢ ((𝐾 ∈ HL ∧ 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴) → (𝑅 ∨ 𝑆) ∈ 𝐵)
13	2, 4, 10, 12	syl3anc 1496	. . . . . 6 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → (𝑅 ∨ 𝑆) ∈ 𝐵)
14		simp1r 1261	. . . . . . 7 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → 𝑊 ∈ 𝐻)
15		cdleme42.h	. . . . . . . 8 ⊢ 𝐻 = (LHyp‘𝐾)
16	5, 15	lhpbase 36074	. . . . . . 7 ⊢ (𝑊 ∈ 𝐻 → 𝑊 ∈ 𝐵)
17	14, 16	syl 17	. . . . . 6 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → 𝑊 ∈ 𝐵)
18		cdleme42.m	. . . . . . 7 ⊢ ∧ = (meet‘𝐾)
19	5, 18	latmcl 17406	. . . . . 6 ⊢ ((𝐾 ∈ Lat ∧ (𝑅 ∨ 𝑆) ∈ 𝐵 ∧ 𝑊 ∈ 𝐵) → ((𝑅 ∨ 𝑆) ∧ 𝑊) ∈ 𝐵)
20	3, 13, 17, 19	syl3anc 1496	. . . . 5 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → ((𝑅 ∨ 𝑆) ∧ 𝑊) ∈ 𝐵)
21	9, 20	syl5eqel 2911	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → 𝑉 ∈ 𝐵)
22		cdleme42.l	. . . . 5 ⊢ ≤ = (le‘𝐾)
23	5, 22, 11	latjle12 17416	. . . 4 ⊢ ((𝐾 ∈ Lat ∧ (𝑅 ∈ 𝐵 ∧ 𝑉 ∈ 𝐵 ∧ 𝑊 ∈ 𝐵)) → ((𝑅 ≤ 𝑊 ∧ 𝑉 ≤ 𝑊) ↔ (𝑅 ∨ 𝑉) ≤ 𝑊))
24	3, 8, 21, 17, 23	syl13anc 1497	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → ((𝑅 ≤ 𝑊 ∧ 𝑉 ≤ 𝑊) ↔ (𝑅 ∨ 𝑉) ≤ 𝑊))
25		simpl 476	. . 3 ⊢ ((𝑅 ≤ 𝑊 ∧ 𝑉 ≤ 𝑊) → 𝑅 ≤ 𝑊)
26	24, 25	syl6bir 246	. 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → ((𝑅 ∨ 𝑉) ≤ 𝑊 → 𝑅 ≤ 𝑊))
27	1, 26	mtod 190	1 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊) ∧ (𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊)) → ¬ (𝑅 ∨ 𝑉) ≤ 𝑊)

Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 198   ∧ wa 386   ∧ w3a 1113   = wceq 1658   ∈ wcel 2166   class class class wbr 4874  ‘cfv 6124  (class class class)co 6906  Basecbs 16223  lecple 16313  joincjn 17298  meetcmee 17299  Latclat 17399  Atomscatm 35339  HLchlt 35426  LHypclh 36060

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1896  ax-4 1910  ax-5 2011  ax-6 2077  ax-7 2114  ax-8 2168  ax-9 2175  ax-10 2194  ax-11 2209  ax-12 2222  ax-13 2391  ax-ext 2804  ax-rep 4995  ax-sep 5006  ax-nul 5014  ax-pow 5066  ax-pr 5128  ax-un 7210

This theorem depends on definitions:  df-bi 199  df-an 387  df-or 881  df-3an 1115  df-tru 1662  df-ex 1881  df-nf 1885  df-sb 2070  df-mo 2606  df-eu 2641  df-clab 2813  df-cleq 2819  df-clel 2822  df-nfc 2959  df-ne 3001  df-ral 3123  df-rex 3124  df-reu 3125  df-rab 3127  df-v 3417  df-sbc 3664  df-csb 3759  df-dif 3802  df-un 3804  df-in 3806  df-ss 3813  df-nul 4146  df-if 4308  df-pw 4381  df-sn 4399  df-pr 4401  df-op 4405  df-uni 4660  df-iun 4743  df-br 4875  df-opab 4937  df-mpt 4954  df-id 5251  df-xp 5349  df-rel 5350  df-cnv 5351  df-co 5352  df-dm 5353  df-rn 5354  df-res 5355  df-ima 5356  df-iota 6087  df-fun 6126  df-fn 6127  df-f 6128  df-f1 6129  df-fo 6130  df-f1o 6131  df-fv 6132  df-riota 6867  df-ov 6909  df-oprab 6910  df-poset 17300  df-lub 17328  df-glb 17329  df-join 17330  df-meet 17331  df-lat 17400  df-ats 35343  df-atl 35374  df-cvlat 35398  df-hlat 35427  df-lhyp 36064

This theorem is referenced by:  cdleme42e  36555