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Related theorems GIF version |
| Description: Value of vector subtraction. |
| Ref | Expression |
|---|---|
| hvsubvalt | ⊢ ((A ∈ ℋ ∧ B ∈ ℋ ) → (A −v B) = (A +v (-1 ·s B))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | oprex 3018 | . 2 ⊢ (A +v (-1 ·s B)) ∈ V | |
| 2 | opreq1 3006 | . 2 ⊢ (x = A → (x +v (-1 ·s y)) = (A +v (-1 ·s y))) | |
| 3 | opreq2 3007 | . . 3 ⊢ (y = B → (-1 ·s y) = (-1 ·s B)) | |
| 4 | 3 | opreq2d 3013 | . 2 ⊢ (y = B → (A +v (-1 ·s y)) = (A +v (-1 ·s B))) |
| 5 | df-hvsub 4996 | . 2 ⊢ −v = {〈〈x, y〉, z〉∣((x ∈ ℋ ∧ y ∈ ℋ ) ∧ z = (x +v (-1 ·s y)))} | |
| 6 | 1, 2, 4, 5 | oprabval2 3051 | 1 ⊢ ((A ∈ ℋ ∧ B ∈ ℋ ) → (A −v B) = (A +v (-1 ·s B))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ∧ wa 196 = wceq 1091 ∈ wcel 1092 (class class class)co 3001 1c1 4029 -cneg 4090 ℋ chil 4958 +v cva 4959 ·s csm 4960 −v cmv 4962 |
| This theorem is referenced by: hvsubclt 4998 hvsubval 5001 hvsubidt 5005 hvnegidt 5006 hvsub4t 5014 hvaddsub12t 5015 hvsubcan1t 5016 hvaddsubasst 5018 hvsub0t 5041 his2subt 5052 shsubclt 5125 |
| 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-un 1076 ax-pow 1077 |
| 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-rex 1206 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-hvsub 4996 |