Step | Hyp | Ref
| Expression |
1 | | nonconne 2954 |
. 2
⊢ ¬
(𝑋 = 𝑋 ∧ 𝑋 ≠ 𝑋) |
2 | | simpl1 1189 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅)) → 𝐾 ∈ HL) |
3 | | simpl2 1190 |
. . . . . . 7
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅)) → 𝑋 ∈ 𝐶) |
4 | | eqid 2738 |
. . . . . . . 8
⊢
(Atoms‘𝐾) =
(Atoms‘𝐾) |
5 | | osumcl.c |
. . . . . . . 8
⊢ 𝐶 = (PSubCl‘𝐾) |
6 | 4, 5 | psubclssatN 37882 |
. . . . . . 7
⊢ ((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶) → 𝑋 ⊆ (Atoms‘𝐾)) |
7 | 2, 3, 6 | syl2anc 583 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅)) → 𝑋 ⊆ (Atoms‘𝐾)) |
8 | | simpl3 1191 |
. . . . . . 7
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅)) → 𝑌 ∈ 𝐶) |
9 | 4, 5 | psubclssatN 37882 |
. . . . . . 7
⊢ ((𝐾 ∈ HL ∧ 𝑌 ∈ 𝐶) → 𝑌 ⊆ (Atoms‘𝐾)) |
10 | 2, 8, 9 | syl2anc 583 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅)) → 𝑌 ⊆ (Atoms‘𝐾)) |
11 | | osumcl.p |
. . . . . . 7
⊢ + =
(+𝑃‘𝐾) |
12 | 4, 11 | paddssat 37755 |
. . . . . 6
⊢ ((𝐾 ∈ HL ∧ 𝑋 ⊆ (Atoms‘𝐾) ∧ 𝑌 ⊆ (Atoms‘𝐾)) → (𝑋 + 𝑌) ⊆ (Atoms‘𝐾)) |
13 | 2, 7, 10, 12 | syl3anc 1369 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅)) → (𝑋 + 𝑌) ⊆ (Atoms‘𝐾)) |
14 | | osumcl.o |
. . . . . 6
⊢ ⊥ =
(⊥𝑃‘𝐾) |
15 | 4, 14 | 2polssN 37856 |
. . . . 5
⊢ ((𝐾 ∈ HL ∧ (𝑋 + 𝑌) ⊆ (Atoms‘𝐾)) → (𝑋 + 𝑌) ⊆ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) |
16 | 2, 13, 15 | syl2anc 583 |
. . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅)) → (𝑋 + 𝑌) ⊆ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) |
17 | | df-pss 3902 |
. . . . . . 7
⊢ ((𝑋 + 𝑌) ⊊ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) ↔ ((𝑋 + 𝑌) ⊆ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) ∧ (𝑋 + 𝑌) ≠ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))))) |
18 | | pssnel 4401 |
. . . . . . 7
⊢ ((𝑋 + 𝑌) ⊊ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) → ∃𝑝(𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌))) |
19 | 17, 18 | sylbir 234 |
. . . . . 6
⊢ (((𝑋 + 𝑌) ⊆ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) ∧ (𝑋 + 𝑌) ≠ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) → ∃𝑝(𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌))) |
20 | | df-rex 3069 |
. . . . . 6
⊢
(∃𝑝 ∈ (
⊥
‘( ⊥ ‘(𝑋 + 𝑌))) ¬ 𝑝 ∈ (𝑋 + 𝑌) ↔ ∃𝑝(𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌))) |
21 | 19, 20 | sylibr 233 |
. . . . 5
⊢ (((𝑋 + 𝑌) ⊆ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) ∧ (𝑋 + 𝑌) ≠ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) → ∃𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) ¬ 𝑝 ∈ (𝑋 + 𝑌)) |
22 | | eqid 2738 |
. . . . . . . . . . 11
⊢
(le‘𝐾) =
(le‘𝐾) |
23 | | eqid 2738 |
. . . . . . . . . . 11
⊢
(join‘𝐾) =
(join‘𝐾) |
24 | | eqid 2738 |
. . . . . . . . . . 11
⊢ (𝑋 + {𝑝}) = (𝑋 + {𝑝}) |
25 | | eqid 2738 |
. . . . . . . . . . 11
⊢ ( ⊥
‘( ⊥ ‘(𝑋 + 𝑌))) = ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) |
26 | 22, 23, 4, 11, 14, 5, 24, 25 | osumcllem9N 37905 |
. . . . . . . . . 10
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → (𝑋 + {𝑝}) = 𝑋) |
27 | | simp11 1201 |
. . . . . . . . . . 11
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → 𝐾 ∈ HL) |
28 | | simp12 1202 |
. . . . . . . . . . . 12
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → 𝑋 ∈ 𝐶) |
29 | 27, 28, 6 | syl2anc 583 |
. . . . . . . . . . 11
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → 𝑋 ⊆ (Atoms‘𝐾)) |
30 | | simp13 1203 |
. . . . . . . . . . . 12
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → 𝑌 ∈ 𝐶) |
31 | 27, 30, 9 | syl2anc 583 |
. . . . . . . . . . 11
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → 𝑌 ⊆ (Atoms‘𝐾)) |
32 | 13 | 3adantr3 1169 |
. . . . . . . . . . . . . . 15
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))))) → (𝑋 + 𝑌) ⊆ (Atoms‘𝐾)) |
33 | 32 | 3adant3 1130 |
. . . . . . . . . . . . . 14
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → (𝑋 + 𝑌) ⊆ (Atoms‘𝐾)) |
34 | 4, 14 | polssatN 37849 |
. . . . . . . . . . . . . 14
⊢ ((𝐾 ∈ HL ∧ (𝑋 + 𝑌) ⊆ (Atoms‘𝐾)) → ( ⊥ ‘(𝑋 + 𝑌)) ⊆ (Atoms‘𝐾)) |
35 | 27, 33, 34 | syl2anc 583 |
. . . . . . . . . . . . 13
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → ( ⊥ ‘(𝑋 + 𝑌)) ⊆ (Atoms‘𝐾)) |
36 | 4, 14 | polssatN 37849 |
. . . . . . . . . . . . 13
⊢ ((𝐾 ∈ HL ∧ ( ⊥
‘(𝑋 + 𝑌)) ⊆ (Atoms‘𝐾)) → ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) ⊆ (Atoms‘𝐾)) |
37 | 27, 35, 36 | syl2anc 583 |
. . . . . . . . . . . 12
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) ⊆ (Atoms‘𝐾)) |
38 | | simp23 1206 |
. . . . . . . . . . . 12
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) |
39 | 37, 38 | sseldd 3918 |
. . . . . . . . . . 11
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → 𝑝 ∈ (Atoms‘𝐾)) |
40 | | simp3 1136 |
. . . . . . . . . . 11
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → ¬ 𝑝 ∈ (𝑋 + 𝑌)) |
41 | 22, 23, 4, 11, 14, 5, 24, 25 | osumcllem10N 37906 |
. . . . . . . . . . 11
⊢ (((𝐾 ∈ HL ∧ 𝑋 ⊆ (Atoms‘𝐾) ∧ 𝑌 ⊆ (Atoms‘𝐾)) ∧ 𝑝 ∈ (Atoms‘𝐾) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → (𝑋 + {𝑝}) ≠ 𝑋) |
42 | 27, 29, 31, 39, 40, 41 | syl311anc 1382 |
. . . . . . . . . 10
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → (𝑋 + {𝑝}) ≠ 𝑋) |
43 | 26, 42 | pm2.21ddne 3028 |
. . . . . . . . 9
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) ∧ ¬ 𝑝 ∈ (𝑋 + 𝑌)) → (𝑋 = 𝑋 ∧ 𝑋 ≠ 𝑋)) |
44 | 43 | 3exp 1117 |
. . . . . . . 8
⊢ ((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) → ((𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅ ∧ 𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) → (¬ 𝑝 ∈ (𝑋 + 𝑌) → (𝑋 = 𝑋 ∧ 𝑋 ≠ 𝑋)))) |
45 | 44 | 3expd 1351 |
. . . . . . 7
⊢ ((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) → (𝑋 ⊆ ( ⊥ ‘𝑌) → (𝑋 ≠ ∅ → (𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) → (¬ 𝑝 ∈ (𝑋 + 𝑌) → (𝑋 = 𝑋 ∧ 𝑋 ≠ 𝑋)))))) |
46 | 45 | imp32 418 |
. . . . . 6
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅)) → (𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) → (¬ 𝑝 ∈ (𝑋 + 𝑌) → (𝑋 = 𝑋 ∧ 𝑋 ≠ 𝑋)))) |
47 | 46 | rexlimdv 3211 |
. . . . 5
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅)) → (∃𝑝 ∈ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) ¬ 𝑝 ∈ (𝑋 + 𝑌) → (𝑋 = 𝑋 ∧ 𝑋 ≠ 𝑋))) |
48 | 21, 47 | syl5 34 |
. . . 4
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅)) → (((𝑋 + 𝑌) ⊆ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) ∧ (𝑋 + 𝑌) ≠ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) → (𝑋 = 𝑋 ∧ 𝑋 ≠ 𝑋))) |
49 | 16, 48 | mpand 691 |
. . 3
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅)) → ((𝑋 + 𝑌) ≠ ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))) → (𝑋 = 𝑋 ∧ 𝑋 ≠ 𝑋))) |
50 | 49 | necon1bd 2960 |
. 2
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅)) → (¬ (𝑋 = 𝑋 ∧ 𝑋 ≠ 𝑋) → (𝑋 + 𝑌) = ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌))))) |
51 | 1, 50 | mpi 20 |
1
⊢ (((𝐾 ∈ HL ∧ 𝑋 ∈ 𝐶 ∧ 𝑌 ∈ 𝐶) ∧ (𝑋 ⊆ ( ⊥ ‘𝑌) ∧ 𝑋 ≠ ∅)) → (𝑋 + 𝑌) = ( ⊥ ‘( ⊥
‘(𝑋 + 𝑌)))) |