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Mirrors > Home > HSE Home > Th. List > ax-hvmulid | Structured version Visualization version GIF version |
Description: Scalar multiplication by one. (Contributed by NM, 30-May-1999.) (New usage is discouraged.) |
Ref | Expression |
---|---|
ax-hvmulid | ⊢ (𝐴 ∈ ℋ → (1 ·ℎ 𝐴) = 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cA | . . 3 class 𝐴 | |
2 | chba 28696 | . . 3 class ℋ | |
3 | 1, 2 | wcel 2114 | . 2 wff 𝐴 ∈ ℋ |
4 | c1 10538 | . . . 4 class 1 | |
5 | csm 28698 | . . . 4 class ·ℎ | |
6 | 4, 1, 5 | co 7156 | . . 3 class (1 ·ℎ 𝐴) |
7 | 6, 1 | wceq 1537 | . 2 wff (1 ·ℎ 𝐴) = 𝐴 |
8 | 3, 7 | wi 4 | 1 wff (𝐴 ∈ ℋ → (1 ·ℎ 𝐴) = 𝐴) |
Colors of variables: wff setvar class |
This axiom is referenced by: hvmul0or 28802 hvsubid 28803 hvaddsubval 28810 hv2times 28838 hvnegdii 28839 hilvc 28939 hhssnv 29041 h1de2bi 29331 h1datomi 29358 mayete3i 29505 homulid2 29577 lnop0 29743 lnopaddi 29748 lnophmlem2 29794 lnfn0i 29819 lnfnaddi 29820 strlem1 30027 |
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