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Metamath Proof Explorer

Theorem cdleme32fva

Description: Part of proof of Lemma D in Crawley p. 113. Value of F at an atom not under W . (Contributed by NM, 2-Mar-2013)

Ref Expression
Hypotheses cdleme32.b ⊢ 𝐵 = ( Base ‘ 𝐾 )
cdleme32.l ⊢ ≤ = ( le ‘ 𝐾 )
cdleme32.j ⊢ ∨ = ( join ‘ 𝐾 )
cdleme32.m ⊢ ∧ = ( meet ‘ 𝐾 )
cdleme32.a ⊢ 𝐴 = ( Atoms ‘ 𝐾 )
cdleme32.h ⊢ 𝐻 = ( LHyp ‘ 𝐾 )
cdleme32.u ⊢ 𝑈 = ( ( 𝑃 ∨ 𝑄 ) ∧ 𝑊 )
cdleme32.c ⊢ 𝐶 = ( ( 𝑠 ∨ 𝑈 ) ∧ ( 𝑄 ∨ ( ( 𝑃 ∨ 𝑠 ) ∧ 𝑊 ) ) )
cdleme32.d ⊢ 𝐷 = ( ( 𝑡 ∨ 𝑈 ) ∧ ( 𝑄 ∨ ( ( 𝑃 ∨ 𝑡 ) ∧ 𝑊 ) ) )
cdleme32.e ⊢ 𝐸 = ( ( 𝑃 ∨ 𝑄 ) ∧ ( 𝐷 ∨ ( ( 𝑠 ∨ 𝑡 ) ∧ 𝑊 ) ) )
cdleme32.i ⊢ 𝐼 = ( ℩ 𝑦 ∈ 𝐵 ∀ 𝑡 ∈ 𝐴 ( ( ¬ 𝑡 ≤ 𝑊 ∧ ¬ 𝑡 ≤ ( 𝑃 ∨ 𝑄 ) ) → 𝑦 = 𝐸 ) )
cdleme32.n ⊢ 𝑁 = if ( 𝑠 ≤ ( 𝑃 ∨ 𝑄 ) , 𝐼 , 𝐶 )
cdleme32.o ⊢ 𝑂 = ( ℩ 𝑧 ∈ 𝐵 ∀ 𝑠 ∈ 𝐴 ( ( ¬ 𝑠 ≤ 𝑊 ∧ ( 𝑠 ∨ ( 𝑥 ∧ 𝑊 ) ) = 𝑥 ) → 𝑧 = ( 𝑁 ∨ ( 𝑥 ∧ 𝑊 ) ) ) )
cdleme32.f ⊢ 𝐹 = ( 𝑥 ∈ 𝐵 ↦ if ( ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑥 ≤ 𝑊 ) , 𝑂 , 𝑥 ) )
Assertion cdleme32fva ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → ⦋ 𝑅 / 𝑥 ⦌ 𝑂 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 )

Proof

Step Hyp Ref Expression
1 cdleme32.b ⊢ 𝐵 = ( Base ‘ 𝐾 )
2 cdleme32.l ⊢ ≤ = ( le ‘ 𝐾 )
3 cdleme32.j ⊢ ∨ = ( join ‘ 𝐾 )
4 cdleme32.m ⊢ ∧ = ( meet ‘ 𝐾 )
5 cdleme32.a ⊢ 𝐴 = ( Atoms ‘ 𝐾 )
6 cdleme32.h ⊢ 𝐻 = ( LHyp ‘ 𝐾 )
7 cdleme32.u ⊢ 𝑈 = ( ( 𝑃 ∨ 𝑄 ) ∧ 𝑊 )
8 cdleme32.c ⊢ 𝐶 = ( ( 𝑠 ∨ 𝑈 ) ∧ ( 𝑄 ∨ ( ( 𝑃 ∨ 𝑠 ) ∧ 𝑊 ) ) )
9 cdleme32.d ⊢ 𝐷 = ( ( 𝑡 ∨ 𝑈 ) ∧ ( 𝑄 ∨ ( ( 𝑃 ∨ 𝑡 ) ∧ 𝑊 ) ) )
10 cdleme32.e ⊢ 𝐸 = ( ( 𝑃 ∨ 𝑄 ) ∧ ( 𝐷 ∨ ( ( 𝑠 ∨ 𝑡 ) ∧ 𝑊 ) ) )
11 cdleme32.i ⊢ 𝐼 = ( ℩ 𝑦 ∈ 𝐵 ∀ 𝑡 ∈ 𝐴 ( ( ¬ 𝑡 ≤ 𝑊 ∧ ¬ 𝑡 ≤ ( 𝑃 ∨ 𝑄 ) ) → 𝑦 = 𝐸 ) )
12 cdleme32.n ⊢ 𝑁 = if ( 𝑠 ≤ ( 𝑃 ∨ 𝑄 ) , 𝐼 , 𝐶 )
13 cdleme32.o ⊢ 𝑂 = ( ℩ 𝑧 ∈ 𝐵 ∀ 𝑠 ∈ 𝐴 ( ( ¬ 𝑠 ≤ 𝑊 ∧ ( 𝑠 ∨ ( 𝑥 ∧ 𝑊 ) ) = 𝑥 ) → 𝑧 = ( 𝑁 ∨ ( 𝑥 ∧ 𝑊 ) ) ) )
14 cdleme32.f ⊢ 𝐹 = ( 𝑥 ∈ 𝐵 ↦ if ( ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑥 ≤ 𝑊 ) , 𝑂 , 𝑥 ) )
15 simp2l ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → 𝑅 ∈ 𝐴 )
16 1 5 atbase ⊢ ( 𝑅 ∈ 𝐴 → 𝑅 ∈ 𝐵 )
17 15 16 syl ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → 𝑅 ∈ 𝐵 )
18 eqid ⊢ ( ℩ 𝑧 ∈ 𝐵 ∀ 𝑠 ∈ 𝐴 ( ( ¬ 𝑠 ≤ 𝑊 ∧ ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 ) → 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ) ) = ( ℩ 𝑧 ∈ 𝐵 ∀ 𝑠 ∈ 𝐴 ( ( ¬ 𝑠 ≤ 𝑊 ∧ ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 ) → 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ) )
19 13 18 cdleme31so ⊢ ( 𝑅 ∈ 𝐵 → ⦋ 𝑅 / 𝑥 ⦌ 𝑂 = ( ℩ 𝑧 ∈ 𝐵 ∀ 𝑠 ∈ 𝐴 ( ( ¬ 𝑠 ≤ 𝑊 ∧ ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 ) → 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ) ) )
20 17 19 syl ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → ⦋ 𝑅 / 𝑥 ⦌ 𝑂 = ( ℩ 𝑧 ∈ 𝐵 ∀ 𝑠 ∈ 𝐴 ( ( ¬ 𝑠 ≤ 𝑊 ∧ ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 ) → 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ) ) )
21 simp1 ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) )
22 simp3 ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → 𝑃 ≠ 𝑄 )
23 simp2 ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) )
24 1 2 3 4 5 6 7 8 9 10 11 12 cdleme32snb ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ) ) → ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ∈ 𝐵 )
25 21 22 23 24 syl12anc ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ∈ 𝐵 )
26 nfv ⊢ Ⅎ 𝑠 ¬ 𝑅 ≤ 𝑊
27 nfcsb1v ⊢ Ⅎ 𝑠 ⦋ 𝑅 / 𝑠 ⦌ 𝑁
28 27 nfeq2 ⊢ Ⅎ 𝑠 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁
29 26 28 nfim ⊢ Ⅎ 𝑠 ( ¬ 𝑅 ≤ 𝑊 → 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 )
30 breq1 ⊢ ( 𝑠 = 𝑅 → ( 𝑠 ≤ 𝑊 ↔ 𝑅 ≤ 𝑊 ) )
31 30 notbid ⊢ ( 𝑠 = 𝑅 → ( ¬ 𝑠 ≤ 𝑊 ↔ ¬ 𝑅 ≤ 𝑊 ) )
32 csbeq1a ⊢ ( 𝑠 = 𝑅 → 𝑁 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 )
33 32 eqeq2d ⊢ ( 𝑠 = 𝑅 → ( 𝑧 = 𝑁 ↔ 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ) )
34 31 33 imbi12d ⊢ ( 𝑠 = 𝑅 → ( ( ¬ 𝑠 ≤ 𝑊 → 𝑧 = 𝑁 ) ↔ ( ¬ 𝑅 ≤ 𝑊 → 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ) ) )
35 34 ax-gen ⊢ ∀ 𝑠 ( 𝑠 = 𝑅 → ( ( ¬ 𝑠 ≤ 𝑊 → 𝑧 = 𝑁 ) ↔ ( ¬ 𝑅 ≤ 𝑊 → 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ) ) )
36 ceqsralt ⊢ ( ( Ⅎ 𝑠 ( ¬ 𝑅 ≤ 𝑊 → 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ) ∧ ∀ 𝑠 ( 𝑠 = 𝑅 → ( ( ¬ 𝑠 ≤ 𝑊 → 𝑧 = 𝑁 ) ↔ ( ¬ 𝑅 ≤ 𝑊 → 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ) ) ) ∧ 𝑅 ∈ 𝐴 ) → ( ∀ 𝑠 ∈ 𝐴 ( 𝑠 = 𝑅 → ( ¬ 𝑠 ≤ 𝑊 → 𝑧 = 𝑁 ) ) ↔ ( ¬ 𝑅 ≤ 𝑊 → 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ) ) )
37 29 35 36 mp3an12 ⊢ ( 𝑅 ∈ 𝐴 → ( ∀ 𝑠 ∈ 𝐴 ( 𝑠 = 𝑅 → ( ¬ 𝑠 ≤ 𝑊 → 𝑧 = 𝑁 ) ) ↔ ( ¬ 𝑅 ≤ 𝑊 → 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ) ) )
38 37 adantr ⊢ ( ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) → ( ∀ 𝑠 ∈ 𝐴 ( 𝑠 = 𝑅 → ( ¬ 𝑠 ≤ 𝑊 → 𝑧 = 𝑁 ) ) ↔ ( ¬ 𝑅 ≤ 𝑊 → 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ) ) )
39 38 3ad2ant2 ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → ( ∀ 𝑠 ∈ 𝐴 ( 𝑠 = 𝑅 → ( ¬ 𝑠 ≤ 𝑊 → 𝑧 = 𝑁 ) ) ↔ ( ¬ 𝑅 ≤ 𝑊 → 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ) ) )
40 simp11 ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) )
41 eqid ⊢ ( 0. ‘ 𝐾 ) = ( 0. ‘ 𝐾 )
42 2 4 41 5 6 lhpmat ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ) → ( 𝑅 ∧ 𝑊 ) = ( 0. ‘ 𝐾 ) )
43 40 23 42 syl2anc ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → ( 𝑅 ∧ 𝑊 ) = ( 0. ‘ 𝐾 ) )
44 43 adantr ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → ( 𝑅 ∧ 𝑊 ) = ( 0. ‘ 𝐾 ) )
45 44 oveq2d ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = ( 𝑠 ∨ ( 0. ‘ 𝐾 ) ) )
46 simp11l ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → 𝐾 ∈ HL )
47 46 adantr ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → 𝐾 ∈ HL )
48 hlol ⊢ ( 𝐾 ∈ HL → 𝐾 ∈ OL )
49 47 48 syl ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → 𝐾 ∈ OL )
50 1 5 atbase ⊢ ( 𝑠 ∈ 𝐴 → 𝑠 ∈ 𝐵 )
51 50 ad2antrl ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → 𝑠 ∈ 𝐵 )
52 1 3 41 olj01 ⊢ ( ( 𝐾 ∈ OL ∧ 𝑠 ∈ 𝐵 ) → ( 𝑠 ∨ ( 0. ‘ 𝐾 ) ) = 𝑠 )
53 49 51 52 syl2anc ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → ( 𝑠 ∨ ( 0. ‘ 𝐾 ) ) = 𝑠 )
54 45 53 eqtrd ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑠 )
55 54 eqeq1d ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → ( ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 ↔ 𝑠 = 𝑅 ) )
56 44 oveq2d ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) = ( 𝑁 ∨ ( 0. ‘ 𝐾 ) ) )
57 simpl11 ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) )
58 simpl12 ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) )
59 simpl13 ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) )
60 simpr ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) )
61 simpl3 ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → 𝑃 ≠ 𝑄 )
62 1 2 3 4 5 6 7 8 9 10 11 12 cdleme27cl ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ) → 𝑁 ∈ 𝐵 )
63 57 58 59 60 61 62 syl122anc ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → 𝑁 ∈ 𝐵 )
64 1 3 41 olj01 ⊢ ( ( 𝐾 ∈ OL ∧ 𝑁 ∈ 𝐵 ) → ( 𝑁 ∨ ( 0. ‘ 𝐾 ) ) = 𝑁 )
65 49 63 64 syl2anc ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → ( 𝑁 ∨ ( 0. ‘ 𝐾 ) ) = 𝑁 )
66 56 65 eqtrd ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑁 )
67 66 eqeq2d ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → ( 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ↔ 𝑧 = 𝑁 ) )
68 55 67 imbi12d ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ ( 𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ 𝑊 ) ) → ( ( ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 → 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ) ↔ ( 𝑠 = 𝑅 → 𝑧 = 𝑁 ) ) )
69 68 expr ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ 𝑠 ∈ 𝐴 ) → ( ¬ 𝑠 ≤ 𝑊 → ( ( ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 → 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ) ↔ ( 𝑠 = 𝑅 → 𝑧 = 𝑁 ) ) ) )
70 69 pm5.74d ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ 𝑠 ∈ 𝐴 ) → ( ( ¬ 𝑠 ≤ 𝑊 → ( ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 → 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ) ) ↔ ( ¬ 𝑠 ≤ 𝑊 → ( 𝑠 = 𝑅 → 𝑧 = 𝑁 ) ) ) )
71 impexp ⊢ ( ( ( ¬ 𝑠 ≤ 𝑊 ∧ ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 ) → 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ) ↔ ( ¬ 𝑠 ≤ 𝑊 → ( ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 → 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ) ) )
72 bi2.04 ⊢ ( ( 𝑠 = 𝑅 → ( ¬ 𝑠 ≤ 𝑊 → 𝑧 = 𝑁 ) ) ↔ ( ¬ 𝑠 ≤ 𝑊 → ( 𝑠 = 𝑅 → 𝑧 = 𝑁 ) ) )
73 70 71 72 3bitr4g ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ 𝑠 ∈ 𝐴 ) → ( ( ( ¬ 𝑠 ≤ 𝑊 ∧ ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 ) → 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ) ↔ ( 𝑠 = 𝑅 → ( ¬ 𝑠 ≤ 𝑊 → 𝑧 = 𝑁 ) ) ) )
74 73 ralbidva ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → ( ∀ 𝑠 ∈ 𝐴 ( ( ¬ 𝑠 ≤ 𝑊 ∧ ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 ) → 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ) ↔ ∀ 𝑠 ∈ 𝐴 ( 𝑠 = 𝑅 → ( ¬ 𝑠 ≤ 𝑊 → 𝑧 = 𝑁 ) ) ) )
75 simp2r ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → ¬ 𝑅 ≤ 𝑊 )
76 biimt ⊢ ( ¬ 𝑅 ≤ 𝑊 → ( 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ↔ ( ¬ 𝑅 ≤ 𝑊 → 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ) ) )
77 75 76 syl ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → ( 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ↔ ( ¬ 𝑅 ≤ 𝑊 → 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ) ) )
78 39 74 77 3bitr4d ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → ( ∀ 𝑠 ∈ 𝐴 ( ( ¬ 𝑠 ≤ 𝑊 ∧ ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 ) → 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ) ↔ 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ) )
79 78 adantr ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) ∧ 𝑧 ∈ 𝐵 ) → ( ∀ 𝑠 ∈ 𝐴 ( ( ¬ 𝑠 ≤ 𝑊 ∧ ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 ) → 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ) ↔ 𝑧 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 ) )
80 25 79 riota5 ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → ( ℩ 𝑧 ∈ 𝐵 ∀ 𝑠 ∈ 𝐴 ( ( ¬ 𝑠 ≤ 𝑊 ∧ ( 𝑠 ∨ ( 𝑅 ∧ 𝑊 ) ) = 𝑅 ) → 𝑧 = ( 𝑁 ∨ ( 𝑅 ∧ 𝑊 ) ) ) ) = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 )
81 20 80 eqtrd ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) ∧ ( 𝑅 ∈ 𝐴 ∧ ¬ 𝑅 ≤ 𝑊 ) ∧ 𝑃 ≠ 𝑄 ) → ⦋ 𝑅 / 𝑥 ⦌ 𝑂 = ⦋ 𝑅 / 𝑠 ⦌ 𝑁 )