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Related theorems GIF version |
| Description: Hilbert lattice ordering in terms of subspace sum. |
| Ref | Expression |
|---|---|
| shlesb1.1 | ⊢ A ∈ Sℋ |
| shlesb1.2 | ⊢ B ∈ Sℋ |
| Ref | Expression |
|---|---|
| shlesb1 | ⊢ (A ⊆ B ↔ (A +ℋ B) = B) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssid 1519 | . . 3 ⊢ B ⊆ B | |
| 2 | 1 | biantrur 544 | . 2 ⊢ (A ⊆ B ↔ (B ⊆ B ∧ A ⊆ B)) |
| 3 | shlesb1.2 | . . 3 ⊢ B ∈ Sℋ | |
| 4 | shlesb1.1 | . . 3 ⊢ A ∈ Sℋ | |
| 5 | 3, 4, 3 | shslub 5359 | . 2 ⊢ ((B ⊆ B ∧ A ⊆ B) ↔ (B +ℋ A) ⊆ B) |
| 6 | eqss 1516 | . . . 4 ⊢ ((A +ℋ B) = B ↔ ((A +ℋ B) ⊆ B ∧ B ⊆ (A +ℋ B))) | |
| 7 | 3, 4 | shsub1 5342 | . . . . 5 ⊢ B ⊆ (B +ℋ A) |
| 8 | 4, 3 | shscom 5333 | . . . . 5 ⊢ (A +ℋ B) = (B +ℋ A) |
| 9 | 7, 8 | sseqtr4 1533 | . . . 4 ⊢ B ⊆ (A +ℋ B) |
| 10 | 6, 9 | mpbiranr 548 | . . 3 ⊢ ((A +ℋ B) = B ↔ (A +ℋ B) ⊆ B) |
| 11 | 8 | sseq1i 1524 | . . 3 ⊢ ((A +ℋ B) ⊆ B ↔ (B +ℋ A) ⊆ B) |
| 12 | 10, 11 | bitr2 152 | . 2 ⊢ ((B +ℋ A) ⊆ B ↔ (A +ℋ B) = B) |
| 13 | 2, 5, 12 | 3bitr 155 | 1 ⊢ (A ⊆ B ↔ (A +ℋ B) = B) |
| Colors of variables: wff set class |
| Syntax hints: ↔ wb 127 ∧ wa 196 = wceq 1091 ∈ wcel 1092 ⊆ wss 1487 (class class class)co 3001 Sℋ csh 4967 +ℋ cph 4970 |
| This theorem is referenced by: shmods 5363 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-pow 1077 ax-hilex 4983 ax-hvaddcl 4984 ax-hvcom 4985 ax-hvaddid 4988 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-3an 583 df-ex 679 df-sb 853 df-eu 1009 df-mo 1010 df-clab 1093 df-cleq 1097 df-clel 1099 df-ral 1205 df-rex 1206 df-rab 1208 df-v 1349 df-dif 1489 df-un 1490 df-in 1491 df-ss 1492 df-nul 1708 df-pw 1799 df-sn 1811 df-pr 1812 df-op 1815 df-uni 1920 df-br 2063 df-opab 2098 df-id 2125 df-xp 2424 df-rel 2425 df-cnv 2426 df-co 2427 df-dm 2428 df-rn 2429 df-res 2430 df-ima 2431 df-fun 2432 df-fv 2438 df-opr 3003 df-oprab 3004 df-sh 5114 df-shsum 5275 |