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Related theorems GIF version |
| Description: Membership in orthogonal complement of H subset. |
| Ref | Expression |
|---|---|
| ocelt | ⊢ (H ⊆ ℋ → (A ∈ (⊥ ‘H) ↔ (A ∈ ℋ ∧ ∀x ∈ H (A ·i x) = 0))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ocvalt 5161 | . . 3 ⊢ (H ⊆ ℋ → (⊥ ‘H) = {y ∈ ℋ ∣∀x ∈ H (y ·i x) = 0}) | |
| 2 | 1 | eleq2d 1156 | . 2 ⊢ (H ⊆ ℋ → (A ∈ (⊥ ‘H) ↔ A ∈ {y ∈ ℋ ∣∀x ∈ H (y ·i x) = 0})) |
| 3 | opreq1 3006 | . . . . 5 ⊢ (y = A → (y ·i x) = (A ·i x)) | |
| 4 | 3 | cleq1d 1109 | . . . 4 ⊢ (y = A → ((y ·i x) = 0 ↔ (A ·i x) = 0)) |
| 5 | 4 | biraldv 1219 | . . 3 ⊢ (y = A → (∀x ∈ H (y ·i x) = 0 ↔ ∀x ∈ H (A ·i x) = 0)) |
| 6 | 5 | elrab 1422 | . 2 ⊢ (A ∈ {y ∈ ℋ ∣∀x ∈ H (y ·i x) = 0} ↔ (A ∈ ℋ ∧ ∀x ∈ H (A ·i x) = 0)) |
| 7 | 2, 6 | syl6bb 414 | 1 ⊢ (H ⊆ ℋ → (A ∈ (⊥ ‘H) ↔ (A ∈ ℋ ∧ ∀x ∈ H (A ·i x) = 0))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ↔ wb 127 ∧ wa 196 = wceq 1091 ∈ wcel 1092 ∀wral 1201 {crab 1204 ⊆ wss 1487 ‘cfv 2422 (class class class)co 3001 0cc0 4028 ℋ chil 4958 ·i csp 4963 ⊥cort 4969 |
| This theorem is referenced by: shocelt 5163 ocsh 5164 ocorth 5172 ococss 5174 occl 5188 chocnul 5293 h1deot 5454 h1det 5455 |
| 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 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 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-oc 5156 |