| 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 ) |