This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.
Description: Part of proof of Lemma D in Crawley p. 113. (Contributed by NM, 29-May-2012)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | cdlemd2.l | ⊢ ≤ = ( le ‘ 𝐾 ) | |
| cdlemd2.j | ⊢ ∨ = ( join ‘ 𝐾 ) | ||
| cdlemd2.a | ⊢ 𝐴 = ( Atoms ‘ 𝐾 ) | ||
| cdlemd2.h | ⊢ 𝐻 = ( LHyp ‘ 𝐾 ) | ||
| cdlemd2.t | ⊢ 𝑇 = ( ( LTrn ‘ 𝐾 ) ‘ 𝑊 ) | ||
| Assertion | cdlemd2 | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ 𝑅 ) = ( 𝐺 ‘ 𝑅 ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cdlemd2.l | ⊢ ≤ = ( le ‘ 𝐾 ) | |
| 2 | cdlemd2.j | ⊢ ∨ = ( join ‘ 𝐾 ) | |
| 3 | cdlemd2.a | ⊢ 𝐴 = ( Atoms ‘ 𝐾 ) | |
| 4 | cdlemd2.h | ⊢ 𝐻 = ( LHyp ‘ 𝐾 ) | |
| 5 | cdlemd2.t | ⊢ 𝑇 = ( ( LTrn ‘ 𝐾 ) ‘ 𝑊 ) | |
| 6 | simp3l | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ) | |
| 7 | simp11 | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ) | |
| 8 | simp12l | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → 𝐹 ∈ 𝑇 ) | |
| 9 | simp11l | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → 𝐾 ∈ HL ) | |
| 10 | 9 | hllatd | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → 𝐾 ∈ Lat ) |
| 11 | simp21l | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → 𝑃 ∈ 𝐴 ) | |
| 12 | simp13 | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → 𝑅 ∈ 𝐴 ) | |
| 13 | eqid | ⊢ ( Base ‘ 𝐾 ) = ( Base ‘ 𝐾 ) | |
| 14 | 13 2 3 | hlatjcl | ⊢ ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) → ( 𝑃 ∨ 𝑅 ) ∈ ( Base ‘ 𝐾 ) ) |
| 15 | 9 11 12 14 | syl3anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝑃 ∨ 𝑅 ) ∈ ( Base ‘ 𝐾 ) ) |
| 16 | simp11r | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → 𝑊 ∈ 𝐻 ) | |
| 17 | 13 4 | lhpbase | ⊢ ( 𝑊 ∈ 𝐻 → 𝑊 ∈ ( Base ‘ 𝐾 ) ) |
| 18 | 16 17 | syl | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → 𝑊 ∈ ( Base ‘ 𝐾 ) ) |
| 19 | eqid | ⊢ ( meet ‘ 𝐾 ) = ( meet ‘ 𝐾 ) | |
| 20 | 13 19 | latmcl | ⊢ ( ( 𝐾 ∈ Lat ∧ ( 𝑃 ∨ 𝑅 ) ∈ ( Base ‘ 𝐾 ) ∧ 𝑊 ∈ ( Base ‘ 𝐾 ) ) → ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ∈ ( Base ‘ 𝐾 ) ) |
| 21 | 10 15 18 20 | syl3anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ∈ ( Base ‘ 𝐾 ) ) |
| 22 | 13 1 19 | latmle2 | ⊢ ( ( 𝐾 ∈ Lat ∧ ( 𝑃 ∨ 𝑅 ) ∈ ( Base ‘ 𝐾 ) ∧ 𝑊 ∈ ( Base ‘ 𝐾 ) ) → ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ≤ 𝑊 ) |
| 23 | 10 15 18 22 | syl3anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ≤ 𝑊 ) |
| 24 | 13 1 4 5 | ltrnval1 | ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ 𝐹 ∈ 𝑇 ∧ ( ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ∈ ( Base ‘ 𝐾 ) ∧ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ≤ 𝑊 ) ) → ( 𝐹 ‘ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) = ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) |
| 25 | 7 8 21 23 24 | syl112anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) = ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) |
| 26 | simp12r | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → 𝐺 ∈ 𝑇 ) | |
| 27 | 13 1 4 5 | ltrnval1 | ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ 𝐺 ∈ 𝑇 ∧ ( ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ∈ ( Base ‘ 𝐾 ) ∧ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ≤ 𝑊 ) ) → ( 𝐺 ‘ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) = ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) |
| 28 | 7 26 21 23 27 | syl112anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐺 ‘ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) = ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) |
| 29 | 25 28 | eqtr4d | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) = ( 𝐺 ‘ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) |
| 30 | 6 29 | oveq12d | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( ( 𝐹 ‘ 𝑃 ) ∨ ( 𝐹 ‘ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) = ( ( 𝐺 ‘ 𝑃 ) ∨ ( 𝐺 ‘ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) |
| 31 | 13 3 | atbase | ⊢ ( 𝑃 ∈ 𝐴 → 𝑃 ∈ ( Base ‘ 𝐾 ) ) |
| 32 | 11 31 | syl | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → 𝑃 ∈ ( Base ‘ 𝐾 ) ) |
| 33 | 13 2 4 5 | ltrnj | ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ 𝐹 ∈ 𝑇 ∧ ( 𝑃 ∈ ( Base ‘ 𝐾 ) ∧ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ∈ ( Base ‘ 𝐾 ) ) ) → ( 𝐹 ‘ ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) = ( ( 𝐹 ‘ 𝑃 ) ∨ ( 𝐹 ‘ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) |
| 34 | 7 8 32 21 33 | syl112anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) = ( ( 𝐹 ‘ 𝑃 ) ∨ ( 𝐹 ‘ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) |
| 35 | 13 2 4 5 | ltrnj | ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ 𝐺 ∈ 𝑇 ∧ ( 𝑃 ∈ ( Base ‘ 𝐾 ) ∧ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ∈ ( Base ‘ 𝐾 ) ) ) → ( 𝐺 ‘ ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) = ( ( 𝐺 ‘ 𝑃 ) ∨ ( 𝐺 ‘ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) |
| 36 | 7 26 32 21 35 | syl112anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐺 ‘ ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) = ( ( 𝐺 ‘ 𝑃 ) ∨ ( 𝐺 ‘ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) |
| 37 | 30 34 36 | 3eqtr4d | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) = ( 𝐺 ‘ ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) |
| 38 | simp3r | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) | |
| 39 | simp22l | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → 𝑄 ∈ 𝐴 ) | |
| 40 | 13 2 3 | hlatjcl | ⊢ ( ( 𝐾 ∈ HL ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) → ( 𝑄 ∨ 𝑅 ) ∈ ( Base ‘ 𝐾 ) ) |
| 41 | 9 39 12 40 | syl3anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝑄 ∨ 𝑅 ) ∈ ( Base ‘ 𝐾 ) ) |
| 42 | 13 19 | latmcl | ⊢ ( ( 𝐾 ∈ Lat ∧ ( 𝑄 ∨ 𝑅 ) ∈ ( Base ‘ 𝐾 ) ∧ 𝑊 ∈ ( Base ‘ 𝐾 ) ) → ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ∈ ( Base ‘ 𝐾 ) ) |
| 43 | 10 41 18 42 | syl3anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ∈ ( Base ‘ 𝐾 ) ) |
| 44 | 13 1 19 | latmle2 | ⊢ ( ( 𝐾 ∈ Lat ∧ ( 𝑄 ∨ 𝑅 ) ∈ ( Base ‘ 𝐾 ) ∧ 𝑊 ∈ ( Base ‘ 𝐾 ) ) → ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ≤ 𝑊 ) |
| 45 | 10 41 18 44 | syl3anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ≤ 𝑊 ) |
| 46 | 13 1 4 5 | ltrnval1 | ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ 𝐹 ∈ 𝑇 ∧ ( ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ∈ ( Base ‘ 𝐾 ) ∧ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ≤ 𝑊 ) ) → ( 𝐹 ‘ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) = ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) |
| 47 | 7 8 43 45 46 | syl112anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) = ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) |
| 48 | 13 1 4 5 | ltrnval1 | ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ 𝐺 ∈ 𝑇 ∧ ( ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ∈ ( Base ‘ 𝐾 ) ∧ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ≤ 𝑊 ) ) → ( 𝐺 ‘ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) = ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) |
| 49 | 7 26 43 45 48 | syl112anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐺 ‘ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) = ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) |
| 50 | 47 49 | eqtr4d | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) = ( 𝐺 ‘ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) |
| 51 | 38 50 | oveq12d | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( ( 𝐹 ‘ 𝑄 ) ∨ ( 𝐹 ‘ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) = ( ( 𝐺 ‘ 𝑄 ) ∨ ( 𝐺 ‘ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) |
| 52 | 13 3 | atbase | ⊢ ( 𝑄 ∈ 𝐴 → 𝑄 ∈ ( Base ‘ 𝐾 ) ) |
| 53 | 39 52 | syl | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → 𝑄 ∈ ( Base ‘ 𝐾 ) ) |
| 54 | 13 2 4 5 | ltrnj | ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ 𝐹 ∈ 𝑇 ∧ ( 𝑄 ∈ ( Base ‘ 𝐾 ) ∧ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ∈ ( Base ‘ 𝐾 ) ) ) → ( 𝐹 ‘ ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) = ( ( 𝐹 ‘ 𝑄 ) ∨ ( 𝐹 ‘ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) |
| 55 | 7 8 53 43 54 | syl112anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) = ( ( 𝐹 ‘ 𝑄 ) ∨ ( 𝐹 ‘ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) |
| 56 | 13 2 4 5 | ltrnj | ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ 𝐺 ∈ 𝑇 ∧ ( 𝑄 ∈ ( Base ‘ 𝐾 ) ∧ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ∈ ( Base ‘ 𝐾 ) ) ) → ( 𝐺 ‘ ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) = ( ( 𝐺 ‘ 𝑄 ) ∨ ( 𝐺 ‘ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) |
| 57 | 7 26 53 43 56 | syl112anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐺 ‘ ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) = ( ( 𝐺 ‘ 𝑄 ) ∨ ( 𝐺 ‘ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) |
| 58 | 51 55 57 | 3eqtr4d | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) = ( 𝐺 ‘ ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) |
| 59 | 37 58 | oveq12d | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( ( 𝐹 ‘ ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ( meet ‘ 𝐾 ) ( 𝐹 ‘ ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) = ( ( 𝐺 ‘ ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ( meet ‘ 𝐾 ) ( 𝐺 ‘ ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) ) |
| 60 | 13 2 | latjcl | ⊢ ( ( 𝐾 ∈ Lat ∧ 𝑃 ∈ ( Base ‘ 𝐾 ) ∧ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ∈ ( Base ‘ 𝐾 ) ) → ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ∈ ( Base ‘ 𝐾 ) ) |
| 61 | 10 32 21 60 | syl3anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ∈ ( Base ‘ 𝐾 ) ) |
| 62 | 13 2 | latjcl | ⊢ ( ( 𝐾 ∈ Lat ∧ 𝑄 ∈ ( Base ‘ 𝐾 ) ∧ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ∈ ( Base ‘ 𝐾 ) ) → ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ∈ ( Base ‘ 𝐾 ) ) |
| 63 | 10 53 43 62 | syl3anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ∈ ( Base ‘ 𝐾 ) ) |
| 64 | 13 19 4 5 | ltrnm | ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ 𝐹 ∈ 𝑇 ∧ ( ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ∈ ( Base ‘ 𝐾 ) ∧ ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ∈ ( Base ‘ 𝐾 ) ) ) → ( 𝐹 ‘ ( ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ( meet ‘ 𝐾 ) ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) = ( ( 𝐹 ‘ ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ( meet ‘ 𝐾 ) ( 𝐹 ‘ ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) ) |
| 65 | 7 8 61 63 64 | syl112anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ ( ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ( meet ‘ 𝐾 ) ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) = ( ( 𝐹 ‘ ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ( meet ‘ 𝐾 ) ( 𝐹 ‘ ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) ) |
| 66 | 13 19 4 5 | ltrnm | ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ 𝐺 ∈ 𝑇 ∧ ( ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ∈ ( Base ‘ 𝐾 ) ∧ ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ∈ ( Base ‘ 𝐾 ) ) ) → ( 𝐺 ‘ ( ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ( meet ‘ 𝐾 ) ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) = ( ( 𝐺 ‘ ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ( meet ‘ 𝐾 ) ( 𝐺 ‘ ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) ) |
| 67 | 7 26 61 63 66 | syl112anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐺 ‘ ( ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ( meet ‘ 𝐾 ) ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) = ( ( 𝐺 ‘ ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ( meet ‘ 𝐾 ) ( 𝐺 ‘ ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) ) |
| 68 | 59 65 67 | 3eqtr4d | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ ( ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ( meet ‘ 𝐾 ) ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) = ( 𝐺 ‘ ( ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ( meet ‘ 𝐾 ) ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) ) |
| 69 | simp21 | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ) | |
| 70 | simp22 | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ) | |
| 71 | simp23l | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → 𝑃 ≠ 𝑄 ) | |
| 72 | simp23r | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) | |
| 73 | 12 71 72 | 3jca | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝑅 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) |
| 74 | 1 2 19 3 4 | cdlemd1 | ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ) → 𝑅 = ( ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ( meet ‘ 𝐾 ) ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) |
| 75 | 7 69 70 73 74 | syl13anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → 𝑅 = ( ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ( meet ‘ 𝐾 ) ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) |
| 76 | 75 | fveq2d | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ 𝑅 ) = ( 𝐹 ‘ ( ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ( meet ‘ 𝐾 ) ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) ) |
| 77 | 75 | fveq2d | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐺 ‘ 𝑅 ) = ( 𝐺 ‘ ( ( 𝑃 ∨ ( ( 𝑃 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ( meet ‘ 𝐾 ) ( 𝑄 ∨ ( ( 𝑄 ∨ 𝑅 ) ( meet ‘ 𝐾 ) 𝑊 ) ) ) ) ) |
| 78 | 68 76 77 | 3eqtr4d | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻 ) ∧ ( 𝐹 ∈ 𝑇 ∧ 𝐺 ∈ 𝑇 ) ∧ 𝑅 ∈ 𝐴 ) ∧ ( ( 𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊 ) ∧ ( 𝑄 ∈ 𝐴 ∧ ¬ 𝑄 ≤ 𝑊 ) ∧ ( 𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ ( 𝑃 ∨ 𝑄 ) ) ) ∧ ( ( 𝐹 ‘ 𝑃 ) = ( 𝐺 ‘ 𝑃 ) ∧ ( 𝐹 ‘ 𝑄 ) = ( 𝐺 ‘ 𝑄 ) ) ) → ( 𝐹 ‘ 𝑅 ) = ( 𝐺 ‘ 𝑅 ) ) |