Theorem cdleme28a 38311

Description: Lemma for cdleme25b 38295. TODO: FIX COMMENT. (Contributed by NM, 4-Feb-2013.)

Hypotheses

Ref	Expression
cdleme26.b	⊢ 𝐵 = (Base‘𝐾)
cdleme26.l	⊢ ≤ = (le‘𝐾)
cdleme26.j	⊢ ∨ = (join‘𝐾)
cdleme26.m	⊢ ∧ = (meet‘𝐾)
cdleme26.a	⊢ 𝐴 = (Atoms‘𝐾)
cdleme26.h	⊢ 𝐻 = (LHyp‘𝐾)
cdleme27.u	⊢ 𝑈 = ((𝑃 ∨ 𝑄) ∧ 𝑊)
cdleme27.f	⊢ 𝐹 = ((𝑠 ∨ 𝑈) ∧ (𝑄 ∨ ((𝑃 ∨ 𝑠) ∧ 𝑊)))
cdleme27.z	⊢ 𝑍 = ((𝑧 ∨ 𝑈) ∧ (𝑄 ∨ ((𝑃 ∨ 𝑧) ∧ 𝑊)))
cdleme27.n	⊢ 𝑁 = ((𝑃 ∨ 𝑄) ∧ (𝑍 ∨ ((𝑠 ∨ 𝑧) ∧ 𝑊)))
cdleme27.d	⊢ 𝐷 = (℩𝑢 ∈ 𝐵 ∀𝑧 ∈ 𝐴 ((¬ 𝑧 ≤ 𝑊 ∧ ¬ 𝑧 ≤ (𝑃 ∨ 𝑄)) → 𝑢 = 𝑁))
cdleme27.c	⊢ 𝐶 = if(𝑠 ≤ (𝑃 ∨ 𝑄), 𝐷, 𝐹)
cdleme27.g	⊢ 𝐺 = ((𝑡 ∨ 𝑈) ∧ (𝑄 ∨ ((𝑃 ∨ 𝑡) ∧ 𝑊)))
cdleme27.o	⊢ 𝑂 = ((𝑃 ∨ 𝑄) ∧ (𝑍 ∨ ((𝑡 ∨ 𝑧) ∧ 𝑊)))
cdleme27.e	⊢ 𝐸 = (℩𝑢 ∈ 𝐵 ∀𝑧 ∈ 𝐴 ((¬ 𝑧 ≤ 𝑊 ∧ ¬ 𝑧 ≤ (𝑃 ∨ 𝑄)) → 𝑢 = 𝑂))
cdleme27.y	⊢ 𝑌 = if(𝑡 ≤ (𝑃 ∨ 𝑄), 𝐸, 𝐺)
cdleme28a.v	⊢ 𝑉 = ((𝑠 ∨ 𝑡) ∧ (𝑋 ∧ 𝑊))

Assertion

Ref	Expression
cdleme28a	⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝐶 ∨ (𝑋 ∧ 𝑊)) ≤ (𝑌 ∨ (𝑋 ∧ 𝑊)))

Distinct variable groups:   𝑡,𝑠,𝑢,𝑧,𝐴   𝐵,𝑠,𝑡,𝑢,𝑧   𝑢,𝐹   𝑢,𝐺   𝐻,𝑠,𝑡,𝑧   ∨ ,𝑠,𝑡,𝑢,𝑧   𝐾,𝑠,𝑡,𝑧   ≤ ,𝑠,𝑡,𝑢,𝑧   ∧ ,𝑠,𝑡,𝑢,𝑧   𝑡,𝑁,𝑢   𝑂,𝑠,𝑢   𝑃,𝑠,𝑡,𝑢,𝑧   𝑄,𝑠,𝑡,𝑢,𝑧   𝑈,𝑠,𝑡,𝑢,𝑧   𝑧,𝑉   𝑊,𝑠,𝑡,𝑢,𝑧   𝑋,𝑠

Allowed substitution hints:   𝐶(𝑧,𝑢,𝑡,𝑠)   𝐷(𝑧,𝑢,𝑡,𝑠)   𝐸(𝑧,𝑢,𝑡,𝑠)   𝐹(𝑧,𝑡,𝑠)   𝐺(𝑧,𝑡,𝑠)   𝐻(𝑢)   𝐾(𝑢)   𝑁(𝑧,𝑠)   𝑂(𝑧,𝑡)   𝑉(𝑢,𝑡,𝑠)   𝑋(𝑧,𝑢,𝑡)   𝑌(𝑧,𝑢,𝑡,𝑠)   𝑍(𝑧,𝑢,𝑡,𝑠)

Proof of Theorem cdleme28a

Step	Hyp	Ref	Expression
1		cdleme26.b	. . 3 ⊢ 𝐵 = (Base‘𝐾)
2		cdleme26.l	. . 3 ⊢ ≤ = (le‘𝐾)
3		simp11l 1282	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝐾 ∈ HL)
4	3	hllatd 37305	. . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝐾 ∈ Lat)
5		simp11r 1283	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝑊 ∈ 𝐻)
6		simp12 1202	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊))
7		simp13 1203	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊))
8		simp22 1205	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊))
9		simp21 1204	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝑃 ≠ 𝑄)
10		cdleme26.j	. . . . 5 ⊢ ∨ = (join‘𝐾)
11		cdleme26.m	. . . . 5 ⊢ ∧ = (meet‘𝐾)
12		cdleme26.a	. . . . 5 ⊢ 𝐴 = (Atoms‘𝐾)
13		cdleme26.h	. . . . 5 ⊢ 𝐻 = (LHyp‘𝐾)
14		cdleme27.u	. . . . 5 ⊢ 𝑈 = ((𝑃 ∨ 𝑄) ∧ 𝑊)
15		cdleme27.f	. . . . 5 ⊢ 𝐹 = ((𝑠 ∨ 𝑈) ∧ (𝑄 ∨ ((𝑃 ∨ 𝑠) ∧ 𝑊)))
16		cdleme27.z	. . . . 5 ⊢ 𝑍 = ((𝑧 ∨ 𝑈) ∧ (𝑄 ∨ ((𝑃 ∨ 𝑧) ∧ 𝑊)))
17		cdleme27.n	. . . . 5 ⊢ 𝑁 = ((𝑃 ∨ 𝑄) ∧ (𝑍 ∨ ((𝑠 ∨ 𝑧) ∧ 𝑊)))
18		cdleme27.d	. . . . 5 ⊢ 𝐷 = (℩𝑢 ∈ 𝐵 ∀𝑧 ∈ 𝐴 ((¬ 𝑧 ≤ 𝑊 ∧ ¬ 𝑧 ≤ (𝑃 ∨ 𝑄)) → 𝑢 = 𝑁))
19		cdleme27.c	. . . . 5 ⊢ 𝐶 = if(𝑠 ≤ (𝑃 ∨ 𝑄), 𝐷, 𝐹)
20	1, 2, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19	cdleme27cl 38307	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ ((𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ 𝑃 ≠ 𝑄)) → 𝐶 ∈ 𝐵)
21	3, 5, 6, 7, 8, 9, 20	syl222anc 1384	. . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝐶 ∈ 𝐵)
22		simp23 1206	. . . . 5 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊))
23		cdleme27.g	. . . . . 6 ⊢ 𝐺 = ((𝑡 ∨ 𝑈) ∧ (𝑄 ∨ ((𝑃 ∨ 𝑡) ∧ 𝑊)))
24		cdleme27.o	. . . . . 6 ⊢ 𝑂 = ((𝑃 ∨ 𝑄) ∧ (𝑍 ∨ ((𝑡 ∨ 𝑧) ∧ 𝑊)))
25		cdleme27.e	. . . . . 6 ⊢ 𝐸 = (℩𝑢 ∈ 𝐵 ∀𝑧 ∈ 𝐴 ((¬ 𝑧 ≤ 𝑊 ∧ ¬ 𝑧 ≤ (𝑃 ∨ 𝑄)) → 𝑢 = 𝑂))
26		cdleme27.y	. . . . . 6 ⊢ 𝑌 = if(𝑡 ≤ (𝑃 ∨ 𝑄), 𝐸, 𝐺)
27	1, 2, 10, 11, 12, 13, 14, 23, 16, 24, 25, 26	cdleme27cl 38307	. . . . 5 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ ((𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊) ∧ 𝑃 ≠ 𝑄)) → 𝑌 ∈ 𝐵)
28	3, 5, 6, 7, 22, 9, 27	syl222anc 1384	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝑌 ∈ 𝐵)
29		simp11 1201	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻))
30	29, 8, 22	3jca 1126	. . . . . 6 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)))
31		simp33 1209	. . . . . 6 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))
32		simp31 1207	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝑠 ≠ 𝑡)
33		simp32l 1296	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋)
34		simp32r 1297	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋)
35	32, 33, 34	3jca 1126	. . . . . 6 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑠 ≠ 𝑡 ∧ (𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋))
36		cdleme28a.v	. . . . . . 7 ⊢ 𝑉 = ((𝑠 ∨ 𝑡) ∧ (𝑋 ∧ 𝑊))
37	1, 2, 10, 11, 12, 13, 36	cdleme23b 38291	. . . . . 6 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ (𝑠 ≠ 𝑡 ∧ (𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) → 𝑉 ∈ 𝐴)
38	30, 31, 35, 37	syl3anc 1369	. . . . 5 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝑉 ∈ 𝐴)
39	1, 12	atbase 37230	. . . . 5 ⊢ (𝑉 ∈ 𝐴 → 𝑉 ∈ 𝐵)
40	38, 39	syl 17	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝑉 ∈ 𝐵)
41	1, 10	latjcl 18072	. . . 4 ⊢ ((𝐾 ∈ Lat ∧ 𝑌 ∈ 𝐵 ∧ 𝑉 ∈ 𝐵) → (𝑌 ∨ 𝑉) ∈ 𝐵)
42	4, 28, 40, 41	syl3anc 1369	. . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑌 ∨ 𝑉) ∈ 𝐵)
43		simp33l 1298	. . . . 5 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝑋 ∈ 𝐵)
44	1, 13	lhpbase 37939	. . . . . 6 ⊢ (𝑊 ∈ 𝐻 → 𝑊 ∈ 𝐵)
45	5, 44	syl 17	. . . . 5 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝑊 ∈ 𝐵)
46	1, 11	latmcl 18073	. . . . 5 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑊 ∈ 𝐵) → (𝑋 ∧ 𝑊) ∈ 𝐵)
47	4, 43, 45, 46	syl3anc 1369	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑋 ∧ 𝑊) ∈ 𝐵)
48	1, 10	latjcl 18072	. . . 4 ⊢ ((𝐾 ∈ Lat ∧ 𝑌 ∈ 𝐵 ∧ (𝑋 ∧ 𝑊) ∈ 𝐵) → (𝑌 ∨ (𝑋 ∧ 𝑊)) ∈ 𝐵)
49	4, 28, 47, 48	syl3anc 1369	. . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑌 ∨ (𝑋 ∧ 𝑊)) ∈ 𝐵)
50	1, 2, 10, 11, 12, 13, 36	cdleme23c 38292	. . . . . 6 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ (𝑠 ≠ 𝑡 ∧ (𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) → 𝑠 ≤ (𝑡 ∨ 𝑉))
51	30, 31, 35, 50	syl3anc 1369	. . . . 5 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝑠 ≤ (𝑡 ∨ 𝑉))
52	32, 51	jca 511	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑠 ≠ 𝑡 ∧ 𝑠 ≤ (𝑡 ∨ 𝑉)))
53	1, 2, 10, 11, 12, 13, 36	cdleme23a 38290	. . . . . 6 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊) ∧ (𝑠 ≠ 𝑡 ∧ (𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋)) → 𝑉 ≤ 𝑊)
54	30, 31, 35, 53	syl3anc 1369	. . . . 5 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝑉 ≤ 𝑊)
55	38, 54	jca 511	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑉 ∈ 𝐴 ∧ 𝑉 ≤ 𝑊))
56	1, 2, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 23, 24, 25, 26	cdleme27a 38308	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊)) ∧ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ ((𝑠 ≠ 𝑡 ∧ 𝑠 ≤ (𝑡 ∨ 𝑉)) ∧ (𝑉 ∈ 𝐴 ∧ 𝑉 ≤ 𝑊))) → 𝐶 ≤ (𝑌 ∨ 𝑉))
57	29, 9, 8, 6, 7, 22, 52, 55, 56	syl332anc 1399	. . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝐶 ≤ (𝑌 ∨ 𝑉))
58		simp22l 1290	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝑠 ∈ 𝐴)
59		simp23l 1292	. . . . . . 7 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝑡 ∈ 𝐴)
60	1, 10, 12	hlatjcl 37308	. . . . . . 7 ⊢ ((𝐾 ∈ HL ∧ 𝑠 ∈ 𝐴 ∧ 𝑡 ∈ 𝐴) → (𝑠 ∨ 𝑡) ∈ 𝐵)
61	3, 58, 59, 60	syl3anc 1369	. . . . . 6 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑠 ∨ 𝑡) ∈ 𝐵)
62	1, 2, 11	latmle2 18098	. . . . . 6 ⊢ ((𝐾 ∈ Lat ∧ (𝑠 ∨ 𝑡) ∈ 𝐵 ∧ (𝑋 ∧ 𝑊) ∈ 𝐵) → ((𝑠 ∨ 𝑡) ∧ (𝑋 ∧ 𝑊)) ≤ (𝑋 ∧ 𝑊))
63	4, 61, 47, 62	syl3anc 1369	. . . . 5 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → ((𝑠 ∨ 𝑡) ∧ (𝑋 ∧ 𝑊)) ≤ (𝑋 ∧ 𝑊))
64	36, 63	eqbrtrid 5105	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝑉 ≤ (𝑋 ∧ 𝑊))
65	1, 2, 10	latjlej2 18087	. . . . 5 ⊢ ((𝐾 ∈ Lat ∧ (𝑉 ∈ 𝐵 ∧ (𝑋 ∧ 𝑊) ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (𝑉 ≤ (𝑋 ∧ 𝑊) → (𝑌 ∨ 𝑉) ≤ (𝑌 ∨ (𝑋 ∧ 𝑊))))
66	4, 40, 47, 28, 65	syl13anc 1370	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑉 ≤ (𝑋 ∧ 𝑊) → (𝑌 ∨ 𝑉) ≤ (𝑌 ∨ (𝑋 ∧ 𝑊))))
67	64, 66	mpd 15	. . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑌 ∨ 𝑉) ≤ (𝑌 ∨ (𝑋 ∧ 𝑊)))
68	1, 2, 4, 21, 42, 49, 57, 67	lattrd 18079	. 2 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → 𝐶 ≤ (𝑌 ∨ (𝑋 ∧ 𝑊)))
69	1, 2, 10	latlej2 18082	. . 3 ⊢ ((𝐾 ∈ Lat ∧ 𝑌 ∈ 𝐵 ∧ (𝑋 ∧ 𝑊) ∈ 𝐵) → (𝑋 ∧ 𝑊) ≤ (𝑌 ∨ (𝑋 ∧ 𝑊)))
70	4, 28, 47, 69	syl3anc 1369	. 2 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝑋 ∧ 𝑊) ≤ (𝑌 ∨ (𝑋 ∧ 𝑊)))
71	1, 2, 10	latjle12 18083	. . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝐶 ∈ 𝐵 ∧ (𝑋 ∧ 𝑊) ∈ 𝐵 ∧ (𝑌 ∨ (𝑋 ∧ 𝑊)) ∈ 𝐵)) → ((𝐶 ≤ (𝑌 ∨ (𝑋 ∧ 𝑊)) ∧ (𝑋 ∧ 𝑊) ≤ (𝑌 ∨ (𝑋 ∧ 𝑊))) ↔ (𝐶 ∨ (𝑋 ∧ 𝑊)) ≤ (𝑌 ∨ (𝑋 ∧ 𝑊))))
72	4, 21, 47, 49, 71	syl13anc 1370	. 2 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → ((𝐶 ≤ (𝑌 ∨ (𝑋 ∧ 𝑊)) ∧ (𝑋 ∧ 𝑊) ≤ (𝑌 ∨ (𝑋 ∧ 𝑊))) ↔ (𝐶 ∨ (𝑋 ∧ 𝑊)) ≤ (𝑌 ∨ (𝑋 ∧ 𝑊))))
73	68, 70, 72	mpbi2and 708	1 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ (𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊)) ∧ (𝑃 ≠ 𝑄 ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊) ∧ (𝑡 ∈ 𝐴 ∧ ¬ 𝑡 ≤ 𝑊)) ∧ (𝑠 ≠ 𝑡 ∧ ((𝑠 ∨ (𝑋 ∧ 𝑊)) = 𝑋 ∧ (𝑡 ∨ (𝑋 ∧ 𝑊)) = 𝑋) ∧ (𝑋 ∈ 𝐵 ∧ ¬ 𝑋 ≤ 𝑊))) → (𝐶 ∨ (𝑋 ∧ 𝑊)) ≤ (𝑌 ∨ (𝑋 ∧ 𝑊)))

Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 205   ∧ wa 395   ∧ w3a 1085   = wceq 1539   ∈ wcel 2108   ≠ wne 2942  ∀wral 3063  ifcif 4456   class class class wbr 5070  ‘cfv 6418  ℩crio 7211  (class class class)co 7255  Basecbs 16840  lecple 16895  joincjn 17944  meetcmee 17945  Latclat 18064  Atomscatm 37204  HLchlt 37291  LHypclh 37925

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-rep 5205  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347  ax-un 7566  ax-riotaBAD 36894

This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3or 1086  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-ral 3068  df-rex 3069  df-reu 3070  df-rmo 3071  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-iun 4923  df-iin 4924  df-br 5071  df-opab 5133  df-mpt 5154  df-id 5480  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-f1 6423  df-fo 6424  df-f1o 6425  df-fv 6426  df-riota 7212  df-ov 7258  df-oprab 7259  df-mpo 7260  df-1st 7804  df-2nd 7805  df-undef 8060  df-proset 17928  df-poset 17946  df-plt 17963  df-lub 17979  df-glb 17980  df-join 17981  df-meet 17982  df-p0 18058  df-p1 18059  df-lat 18065  df-clat 18132  df-oposet 37117  df-ol 37119  df-oml 37120  df-covers 37207  df-ats 37208  df-atl 37239  df-cvlat 37263  df-hlat 37292  df-llines 37439  df-lplanes 37440  df-lvols 37441  df-lines 37442  df-psubsp 37444  df-pmap 37445  df-padd 37737  df-lhyp 37929

This theorem is referenced by:  cdleme28b  38312