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| Mirrors > Home > HSE Home > Th. List > ax-hvcom | Structured version Visualization version GIF version | ||
| Description: Vector addition is commutative. (Contributed by NM, 3-Sep-1999.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| ax-hvcom | ⊢ ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐴 +ℎ 𝐵) = (𝐵 +ℎ 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cA | . . . 4 class 𝐴 | |
| 2 | chba 30994 | . . . 4 class ℋ | |
| 3 | 1, 2 | wcel 2113 | . . 3 wff 𝐴 ∈ ℋ |
| 4 | cB | . . . 4 class 𝐵 | |
| 5 | 4, 2 | wcel 2113 | . . 3 wff 𝐵 ∈ ℋ |
| 6 | 3, 5 | wa 395 | . 2 wff (𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) |
| 7 | cva 30995 | . . . 4 class +ℎ | |
| 8 | 1, 4, 7 | co 7358 | . . 3 class (𝐴 +ℎ 𝐵) |
| 9 | 4, 1, 7 | co 7358 | . . 3 class (𝐵 +ℎ 𝐴) |
| 10 | 8, 9 | wceq 1541 | . 2 wff (𝐴 +ℎ 𝐵) = (𝐵 +ℎ 𝐴) |
| 11 | 6, 10 | wi 4 | 1 wff ((𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) → (𝐴 +ℎ 𝐵) = (𝐵 +ℎ 𝐴)) |
| Colors of variables: wff setvar class |
| This axiom is referenced by: hvcomi 31094 hvaddlid 31098 hvadd32 31109 hvadd12 31110 hvpncan2 31115 hvsub32 31120 hvaddcan2 31146 hilablo 31235 hhssabloi 31337 shscom 31394 pjhtheu2 31491 pjpjpre 31494 pjpo 31503 spanunsni 31654 chscllem4 31715 hoaddcomi 31847 pjimai 32251 superpos 32429 sumdmdii 32490 cdj3lem3 32513 cdj3lem3b 32515 |
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