| Mathbox for Stanislas Polu |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > int-mul12d | Structured version Visualization version GIF version | ||
| Description: Second MultiplicationOne generator rule. (Contributed by Stanislas Polu, 7-Apr-2020.) |
| Ref | Expression |
|---|---|
| int-mul12d.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| int-mul12d.2 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| int-mul12d | ⊢ (𝜑 → (1 · 𝐴) = 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | int-mul12d.1 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
| 2 | 1 | recnd 11248 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| 3 | 2 | mullidd 11238 | . 2 ⊢ (𝜑 → (1 · 𝐴) = 𝐴) |
| 4 | int-mul12d.2 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 5 | 3, 4 | eqtrd 2800 | 1 ⊢ (𝜑 → (1 · 𝐴) = 𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2146 (class class class)co 7416 ℝcr 11110 1c1 11112 · cmul 11116 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-ext 2737 ax-resscn 11168 ax-1cn 11169 ax-icn 11170 ax-addcl 11171 ax-mulcl 11173 ax-mulcom 11175 ax-mulass 11177 ax-distr 11178 ax-1rid 11181 ax-cnre 11184 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2744 df-cleq 2757 df-clel 2840 df-rex 3092 df-rab 3419 df-v 3459 df-dif 3909 df-un 3911 df-ss 3923 df-nul 4287 df-if 4490 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-br 5112 df-iota 6496 df-fv 6548 df-ov 7419 |
| This theorem is used by: (None) |
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