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Metamath Proof Explorer

Theorem cdleme12

Description: Part of proof of Lemma E in Crawley p. 113, 3rd paragraph on p. 114, first part of 3rd sentence. F and G represent f(s) and f(t) respectively. (Contributed by NM, 16-Jun-2012)

Ref Expression
Hypotheses cdleme12.l ⊢ ≤ = ( le ‘ 𝐾 )
cdleme12.j ⊢ ∨ = ( join ‘ 𝐾 )
cdleme12.m ⊢ ∧ = ( meet ‘ 𝐾 )
cdleme12.a ⊢ 𝐴 = ( Atoms ‘ 𝐾 )
cdleme12.h ⊢ 𝐻 = ( LHyp ‘ 𝐾 )
cdleme12.u ⊢ 𝑈 = ( ( 𝑃 ∨ 𝑄 ) ∧ 𝑊 )
cdleme12.f ⊢ 𝐹 = ( ( 𝑆 ∨ 𝑈 ) ∧ ( 𝑄 ∨ ( ( 𝑃 ∨ 𝑆 ) ∧ 𝑊 ) ) )
cdleme12.g ⊢ 𝐺 = ( ( 𝑇 ∨ 𝑈 ) ∧ ( 𝑄 ∨ ( ( 𝑃 ∨ 𝑇 ) ∧ 𝑊 ) ) )
Assertion cdleme12 ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( ( 𝑆 ∨ 𝐹 ) ∧ ( 𝑇 ∨ 𝐺 ) ) = 𝑈 )

Proof

Step Hyp Ref Expression
1 cdleme12.l ⊢ ≤ = ( le ‘ 𝐾 )
2 cdleme12.j ⊢ ∨ = ( join ‘ 𝐾 )
3 cdleme12.m ⊢ ∧ = ( meet ‘ 𝐾 )
4 cdleme12.a ⊢ 𝐴 = ( Atoms ‘ 𝐾 )
5 cdleme12.h ⊢ 𝐻 = ( LHyp ‘ 𝐾 )
6 cdleme12.u ⊢ 𝑈 = ( ( 𝑃 ∨ 𝑄 ) ∧ 𝑊 )
7 cdleme12.f ⊢ 𝐹 = ( ( 𝑆 ∨ 𝑈 ) ∧ ( 𝑄 ∨ ( ( 𝑃 ∨ 𝑆 ) ∧ 𝑊 ) ) )
8 cdleme12.g ⊢ 𝐺 = ( ( 𝑇 ∨ 𝑈 ) ∧ ( 𝑄 ∨ ( ( 𝑃 ∨ 𝑇 ) ∧ 𝑊 ) ) )
9 simp1 ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) )
10 simp21l ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → 𝑃 ∈ 𝐴 )
11 simp22 ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → 𝑄 ∈ 𝐴 )
12 simp31 ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) )
13 1 2 3 4 5 6 7 cdleme1 ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ) ) → ( 𝑆 ∨ 𝐹 ) = ( 𝑆 ∨ 𝑈 ) )
14 9 10 11 12 13 syl13anc ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( 𝑆 ∨ 𝐹 ) = ( 𝑆 ∨ 𝑈 ) )
15 simp1l ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → 𝐾 ∈ HL )
16 simp21 ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) )
17 simp23 ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → 𝑃 ≠ 𝑄 )
18 1 2 3 4 5 6 lhpat2 ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ) → 𝑈 ∈ 𝐴 )
19 9 16 11 17 18 syl112anc ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → 𝑈 ∈ 𝐴 )
20 simp31l ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → 𝑆 ∈ 𝐴 )
21 2 4 hlatjcom ⊢ ( ( 𝐾 ∈ HL ∧ 𝑈 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) → ( 𝑈 ∨ 𝑆 ) = ( 𝑆 ∨ 𝑈 ) )
22 15 19 20 21 syl3anc ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( 𝑈 ∨ 𝑆 ) = ( 𝑆 ∨ 𝑈 ) )
23 14 22 eqtr4d ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( 𝑆 ∨ 𝐹 ) = ( 𝑈 ∨ 𝑆 ) )
24 simp32 ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) )
25 1 2 3 4 5 6 8 cdleme1 ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ) ) → ( 𝑇 ∨ 𝐺 ) = ( 𝑇 ∨ 𝑈 ) )
26 9 10 11 24 25 syl13anc ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( 𝑇 ∨ 𝐺 ) = ( 𝑇 ∨ 𝑈 ) )
27 simp32l ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → 𝑇 ∈ 𝐴 )
28 2 4 hlatjcom ⊢ ( ( 𝐾 ∈ HL ∧ 𝑈 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ) → ( 𝑈 ∨ 𝑇 ) = ( 𝑇 ∨ 𝑈 ) )
29 15 19 27 28 syl3anc ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( 𝑈 ∨ 𝑇 ) = ( 𝑇 ∨ 𝑈 ) )
30 26 29 eqtr4d ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( 𝑇 ∨ 𝐺 ) = ( 𝑈 ∨ 𝑇 ) )
31 23 30 oveq12d ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( ( 𝑆 ∨ 𝐹 ) ∧ ( 𝑇 ∨ 𝐺 ) ) = ( ( 𝑈 ∨ 𝑆 ) ∧ ( 𝑈 ∨ 𝑇 ) ) )
32 simp33 ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) )
33 1 2 3 4 2llnma2 ⊢ ( ( 𝐾 ∈ HL ∧ ( 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑈 ∈ 𝐴 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) → ( ( 𝑈 ∨ 𝑆 ) ∧ ( 𝑈 ∨ 𝑇 ) ) = 𝑈 )
34 15 20 27 19 32 33 syl131anc ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( ( 𝑈 ∨ 𝑆 ) ∧ ( 𝑈 ∨ 𝑇 ) ) = 𝑈 )
35 31 34 eqtrd ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ 𝑄 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ) ∧ ( ( 𝑆 ∈ 𝐴 ∧ ¬ 𝑆 ≤ 𝑊 ) ∧ ( 𝑇 ∈ 𝐴 ∧ ¬ 𝑇 ≤ 𝑊 ) ∧ ( 𝑆 ≠ 𝑇 ∧ ¬ 𝑈 ≤ ( 𝑆 ∨ 𝑇 ) ) ) ) → ( ( 𝑆 ∨ 𝐹 ) ∧ ( 𝑇 ∨ 𝐺 ) ) = 𝑈 )