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Description: Construct a new layer on top of 3 given atoms. (Contributed by NM, 27-Jul-2012)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | 3dim0.j | ⊢ ∨ = ( join ‘ 𝐾 ) | |
| 3dim0.l | ⊢ ≤ = ( le ‘ 𝐾 ) | ||
| 3dim0.a | ⊢ 𝐴 = ( Atoms ‘ 𝐾 ) | ||
| Assertion | 3dim3 | ⊢ ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) → ∃ 𝑠 ∈ 𝐴 ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3dim0.j | ⊢ ∨ = ( join ‘ 𝐾 ) | |
| 2 | 3dim0.l | ⊢ ≤ = ( le ‘ 𝐾 ) | |
| 3 | 3dim0.a | ⊢ 𝐴 = ( Atoms ‘ 𝐾 ) | |
| 4 | 1 2 3 | 3dim2 | ⊢ ( ( 𝐾 ∈ HL ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) → ∃ 𝑣 ∈ 𝐴 ∃ 𝑤 ∈ 𝐴 ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) |
| 5 | 4 | 3adant3r1 | ⊢ ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) → ∃ 𝑣 ∈ 𝐴 ∃ 𝑤 ∈ 𝐴 ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) |
| 6 | simpl2l | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 = 𝑄 ) → 𝑣 ∈ 𝐴 ) | |
| 7 | simp3l | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ) | |
| 8 | simp1l | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → 𝐾 ∈ HL ) | |
| 9 | simp1r2 | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → 𝑄 ∈ 𝐴 ) | |
| 10 | 1 3 | hlatjidm | ⊢ ( ( 𝐾 ∈ HL ∧ 𝑄 ∈ 𝐴 ) → ( 𝑄 ∨ 𝑄 ) = 𝑄 ) |
| 11 | 8 9 10 | syl2anc | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → ( 𝑄 ∨ 𝑄 ) = 𝑄 ) |
| 12 | 11 | oveq1d | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → ( ( 𝑄 ∨ 𝑄 ) ∨ 𝑅 ) = ( 𝑄 ∨ 𝑅 ) ) |
| 13 | 12 | breq2d | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → ( 𝑣 ≤ ( ( 𝑄 ∨ 𝑄 ) ∨ 𝑅 ) ↔ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ) ) |
| 14 | 7 13 | mtbird | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → ¬ 𝑣 ≤ ( ( 𝑄 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 15 | oveq1 | ⊢ ( 𝑃 = 𝑄 → ( 𝑃 ∨ 𝑄 ) = ( 𝑄 ∨ 𝑄 ) ) | |
| 16 | 15 | oveq1d | ⊢ ( 𝑃 = 𝑄 → ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) = ( ( 𝑄 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 17 | 16 | breq2d | ⊢ ( 𝑃 = 𝑄 → ( 𝑣 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ↔ 𝑣 ≤ ( ( 𝑄 ∨ 𝑄 ) ∨ 𝑅 ) ) ) |
| 18 | 17 | notbid | ⊢ ( 𝑃 = 𝑄 → ( ¬ 𝑣 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ↔ ¬ 𝑣 ≤ ( ( 𝑄 ∨ 𝑄 ) ∨ 𝑅 ) ) ) |
| 19 | 18 | biimparc | ⊢ ( ( ¬ 𝑣 ≤ ( ( 𝑄 ∨ 𝑄 ) ∨ 𝑅 ) ∧ 𝑃 = 𝑄 ) → ¬ 𝑣 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 20 | 14 19 | sylan | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 = 𝑄 ) → ¬ 𝑣 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 21 | breq1 | ⊢ ( 𝑠 = 𝑣 → ( 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ↔ 𝑣 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) ) | |
| 22 | 21 | notbid | ⊢ ( 𝑠 = 𝑣 → ( ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ↔ ¬ 𝑣 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) ) |
| 23 | 22 | rspcev | ⊢ ( ( 𝑣 ∈ 𝐴 ∧ ¬ 𝑣 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) → ∃ 𝑠 ∈ 𝐴 ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 24 | 6 20 23 | syl2anc | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 = 𝑄 ) → ∃ 𝑠 ∈ 𝐴 ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 25 | simp2l | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → 𝑣 ∈ 𝐴 ) | |
| 26 | 25 | ad2antrr | ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) → 𝑣 ∈ 𝐴 ) |
| 27 | 7 | ad2antrr | ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) → ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ) |
| 28 | 1 3 | hlatjass | ⊢ ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) → ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) = ( 𝑃 ∨ ( 𝑄 ∨ 𝑅 ) ) ) |
| 29 | 28 | 3ad2ant1 | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) = ( 𝑃 ∨ ( 𝑄 ∨ 𝑅 ) ) ) |
| 30 | 29 | ad2antrr | ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) → ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) = ( 𝑃 ∨ ( 𝑄 ∨ 𝑅 ) ) ) |
| 31 | 8 | hllatd | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → 𝐾 ∈ Lat ) |
| 32 | simp1r1 | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → 𝑃 ∈ 𝐴 ) | |
| 33 | eqid | ⊢ ( Base ‘ 𝐾 ) = ( Base ‘ 𝐾 ) | |
| 34 | 33 3 | atbase | ⊢ ( 𝑃 ∈ 𝐴 → 𝑃 ∈ ( Base ‘ 𝐾 ) ) |
| 35 | 32 34 | syl | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → 𝑃 ∈ ( Base ‘ 𝐾 ) ) |
| 36 | simp1r3 | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → 𝑅 ∈ 𝐴 ) | |
| 37 | 33 1 3 | hlatjcl | ⊢ ( ( 𝐾 ∈ HL ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) → ( 𝑄 ∨ 𝑅 ) ∈ ( Base ‘ 𝐾 ) ) |
| 38 | 8 9 36 37 | syl3anc | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → ( 𝑄 ∨ 𝑅 ) ∈ ( Base ‘ 𝐾 ) ) |
| 39 | 31 35 38 | 3jca | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → ( 𝐾 ∈ Lat ∧ 𝑃 ∈ ( Base ‘ 𝐾 ) ∧ ( 𝑄 ∨ 𝑅 ) ∈ ( Base ‘ 𝐾 ) ) ) |
| 40 | 39 | adantr | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) → ( 𝐾 ∈ Lat ∧ 𝑃 ∈ ( Base ‘ 𝐾 ) ∧ ( 𝑄 ∨ 𝑅 ) ∈ ( Base ‘ 𝐾 ) ) ) |
| 41 | 33 2 1 | latleeqj1 | ⊢ ( ( 𝐾 ∈ Lat ∧ 𝑃 ∈ ( Base ‘ 𝐾 ) ∧ ( 𝑄 ∨ 𝑅 ) ∈ ( Base ‘ 𝐾 ) ) → ( 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ↔ ( 𝑃 ∨ ( 𝑄 ∨ 𝑅 ) ) = ( 𝑄 ∨ 𝑅 ) ) ) |
| 42 | 40 41 | syl | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) → ( 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ↔ ( 𝑃 ∨ ( 𝑄 ∨ 𝑅 ) ) = ( 𝑄 ∨ 𝑅 ) ) ) |
| 43 | 42 | biimpa | ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) → ( 𝑃 ∨ ( 𝑄 ∨ 𝑅 ) ) = ( 𝑄 ∨ 𝑅 ) ) |
| 44 | 30 43 | eqtrd | ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) → ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) = ( 𝑄 ∨ 𝑅 ) ) |
| 45 | 44 | breq2d | ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) → ( 𝑣 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ↔ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ) ) |
| 46 | 27 45 | mtbird | ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) → ¬ 𝑣 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 47 | 26 46 23 | syl2anc | ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) → ∃ 𝑠 ∈ 𝐴 ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 48 | simpl2r | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) → 𝑤 ∈ 𝐴 ) | |
| 49 | 48 | ad2antrr | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → 𝑤 ∈ 𝐴 ) |
| 50 | 8 32 9 | 3jca | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ) |
| 51 | 50 | ad3antrrr | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ) |
| 52 | 36 25 | jca | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → ( 𝑅 ∈ 𝐴 ∧ 𝑣 ∈ 𝐴 ) ) |
| 53 | 52 | ad3antrrr | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ( 𝑅 ∈ 𝐴 ∧ 𝑣 ∈ 𝐴 ) ) |
| 54 | simpl3r | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) → ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) | |
| 55 | 54 | ad2antrr | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) |
| 56 | simplr | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) | |
| 57 | simpr | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) | |
| 58 | 1 2 3 | 3dimlem3a | ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑣 ∈ 𝐴 ) ∧ ( ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → ¬ 𝑤 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 59 | 51 53 55 56 57 58 | syl113anc | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ¬ 𝑤 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 60 | breq1 | ⊢ ( 𝑠 = 𝑤 → ( 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ↔ 𝑤 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) ) | |
| 61 | 60 | notbid | ⊢ ( 𝑠 = 𝑤 → ( ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ↔ ¬ 𝑤 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) ) |
| 62 | 61 | rspcev | ⊢ ( ( 𝑤 ∈ 𝐴 ∧ ¬ 𝑤 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) → ∃ 𝑠 ∈ 𝐴 ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 63 | 49 59 62 | syl2anc | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ∃ 𝑠 ∈ 𝐴 ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 64 | simpl2l | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) → 𝑣 ∈ 𝐴 ) | |
| 65 | 64 | ad2antrr | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ ¬ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → 𝑣 ∈ 𝐴 ) |
| 66 | 50 | ad3antrrr | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ ¬ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ) |
| 67 | 52 | ad3antrrr | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ ¬ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ( 𝑅 ∈ 𝐴 ∧ 𝑣 ∈ 𝐴 ) ) |
| 68 | simpl3l | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) → ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ) | |
| 69 | 68 | ad2antrr | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ ¬ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ) |
| 70 | simplr | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ ¬ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) | |
| 71 | simpr | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ ¬ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ¬ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) | |
| 72 | 1 2 3 | 3dimlem4a | ⊢ ( ( ( 𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ) ∧ ( 𝑅 ∈ 𝐴 ∧ 𝑣 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → ¬ 𝑣 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 73 | 66 67 69 70 71 72 | syl113anc | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ ¬ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ¬ 𝑣 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 74 | 65 73 23 | syl2anc | ⊢ ( ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) ∧ ¬ 𝑃 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ∃ 𝑠 ∈ 𝐴 ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 75 | 63 74 | pm2.61dan | ⊢ ( ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) ∧ ¬ 𝑃 ≤ ( 𝑄 ∨ 𝑅 ) ) → ∃ 𝑠 ∈ 𝐴 ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 76 | 47 75 | pm2.61dan | ⊢ ( ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) ∧ 𝑃 ≠ 𝑄 ) → ∃ 𝑠 ∈ 𝐴 ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 77 | 24 76 | pm2.61dane | ⊢ ( ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) ∧ ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) ∧ ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) ) → ∃ 𝑠 ∈ 𝐴 ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |
| 78 | 77 | 3exp | ⊢ ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) → ( ( 𝑣 ∈ 𝐴 ∧ 𝑤 ∈ 𝐴 ) → ( ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ∃ 𝑠 ∈ 𝐴 ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) ) ) |
| 79 | 78 | rexlimdvv | ⊢ ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) → ( ∃ 𝑣 ∈ 𝐴 ∃ 𝑤 ∈ 𝐴 ( ¬ 𝑣 ≤ ( 𝑄 ∨ 𝑅 ) ∧ ¬ 𝑤 ≤ ( ( 𝑄 ∨ 𝑅 ) ∨ 𝑣 ) ) → ∃ 𝑠 ∈ 𝐴 ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) ) |
| 80 | 5 79 | mpd | ⊢ ( ( 𝐾 ∈ HL ∧ ( 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴 ) ) → ∃ 𝑠 ∈ 𝐴 ¬ 𝑠 ≤ ( ( 𝑃 ∨ 𝑄 ) ∨ 𝑅 ) ) |