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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 28696 | . . . 4 class ℋ | |
3 | 1, 2 | wcel 2114 | . . 3 wff 𝐴 ∈ ℋ |
4 | cB | . . . 4 class 𝐵 | |
5 | 4, 2 | wcel 2114 | . . 3 wff 𝐵 ∈ ℋ |
6 | 3, 5 | wa 398 | . 2 wff (𝐴 ∈ ℋ ∧ 𝐵 ∈ ℋ) |
7 | cva 28697 | . . . 4 class +ℎ | |
8 | 1, 4, 7 | co 7156 | . . 3 class (𝐴 +ℎ 𝐵) |
9 | 4, 1, 7 | co 7156 | . . 3 class (𝐵 +ℎ 𝐴) |
10 | 8, 9 | wceq 1537 | . 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 28796 hvaddid2 28800 hvadd32 28811 hvadd12 28812 hvpncan2 28817 hvsub32 28822 hvaddcan2 28848 hilablo 28937 hhssabloi 29039 shscom 29096 pjhtheu2 29193 pjpjpre 29196 pjpo 29205 spanunsni 29356 chscllem4 29417 hoaddcomi 29549 pjimai 29953 superpos 30131 sumdmdii 30192 cdj3lem3 30215 cdj3lem3b 30217 |
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