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Description: Lemma for 3dim1 . (Contributed by NM, 25-Jul-2012)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | 3dim0.j | ⊢ ∨ = ( join ‘ 𝐾 ) | |
| 3dim0.l | ⊢ ≤ = ( le ‘ 𝐾 ) | ||
| 3dim0.a | ⊢ 𝐴 = ( Atoms ‘ 𝐾 ) | ||
| Assertion | 3dimlem3 | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ∧ ¬ 𝑇 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3dim0.j | ⊢ ∨ = ( join ‘ 𝐾 ) | |
| 2 | 3dim0.l | ⊢ ≤ = ( le ‘ 𝐾 ) | |
| 3 | 3dim0.a | ⊢ 𝐴 = ( Atoms ‘ 𝐾 ) | |
| 4 | simpr1 | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → 𝑃 ≠ 𝑄 ) | |
| 5 | simpr2 | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) | |
| 6 | simpl11 | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → 𝐾 ∈ HL ) | |
| 7 | simpl2l | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → 𝑅 ∈ 𝐴 ) | |
| 8 | simpl12 | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → 𝑃 ∈ 𝐴 ) | |
| 9 | simpl13 | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → 𝑄 ∈ 𝐴 ) | |
| 10 | simpl3l | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → 𝑄 ≠ 𝑅 ) | |
| 11 | 10 | necomd | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → 𝑅 ≠ 𝑄 ) |
| 12 | 2 1 3 | hlatexch2 | ⊢ ( ( 𝐾 ∈ HL ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ 𝑅 ≠ 𝑄 ) → ( 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) → 𝑃 ≤ ( 𝑅 ∨ 𝑄 ) ) ) |
| 13 | 6 7 8 9 11 12 | syl131anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → ( 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) → 𝑃 ≤ ( 𝑅 ∨ 𝑄 ) ) ) |
| 14 | 1 3 | hlatjcom | ⊢ ( ( 𝐾 ∈ HL ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) → ( 𝑄 ∨ 𝑅 ) = ( 𝑅 ∨ 𝑄 ) ) |
| 15 | 6 9 7 14 | syl3anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → ( 𝑄 ∨ 𝑅 ) = ( 𝑅 ∨ 𝑄 ) ) |
| 16 | 15 | breq2d | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → ( 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ↔ 𝑃 ≤ ( 𝑅 ∨ 𝑄 ) ) ) |
| 17 | 13 16 | sylibrd | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → ( 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) → 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ) |
| 18 | 5 17 | mtod | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) |
| 19 | simpl1 | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ) | |
| 20 | simpl2 | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ) | |
| 21 | simpl3r | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) | |
| 22 | simpr3 | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) | |
| 23 | 1 2 3 | 3dimlem3a | ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → ¬ 𝑇 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 24 | 19 20 21 5 22 23 | syl113anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → ¬ 𝑇 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 25 | 4 18 24 | 3jca | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ) ∧ ( 𝑄 ≠ 𝑅 ∧ ¬ 𝑇 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑆 ) ) ) → ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ∧ ¬ 𝑇 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) ) |