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Theorem int-mul12d 40529
Description: Second MultiplicationOne generator rule. (Contributed by Stanislas Polu, 7-Apr-2020.)
Hypotheses
Ref Expression
int-mul12d.1 (𝜑𝐴 ∈ ℝ)
int-mul12d.2 (𝜑𝐴 = 𝐵)
Assertion
Ref Expression
int-mul12d (𝜑 → (1 · 𝐴) = 𝐵)

Proof of Theorem int-mul12d
StepHypRef Expression
1 int-mul12d.1 . . . 4 (𝜑𝐴 ∈ ℝ)
21recnd 10663 . . 3 (𝜑𝐴 ∈ ℂ)
32mulid2d 10653 . 2 (𝜑 → (1 · 𝐴) = 𝐴)
4 int-mul12d.2 . 2 (𝜑𝐴 = 𝐵)
53, 4eqtrd 2856 1 (𝜑 → (1 · 𝐴) = 𝐵)
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1533  wcel 2110  (class class class)co 7150  cr 10530  1c1 10532   · cmul 10536
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2157  ax-12 2173  ax-ext 2793  ax-resscn 10588  ax-1cn 10589  ax-icn 10590  ax-addcl 10591  ax-mulcl 10593  ax-mulcom 10595  ax-mulass 10597  ax-distr 10598  ax-1rid 10601  ax-cnre 10604
This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1536  df-ex 1777  df-nf 1781  df-sb 2066  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ral 3143  df-rex 3144  df-rab 3147  df-v 3496  df-dif 3938  df-un 3940  df-in 3942  df-ss 3951  df-nul 4291  df-if 4467  df-sn 4561  df-pr 4563  df-op 4567  df-uni 4832  df-br 5059  df-iota 6308  df-fv 6357  df-ov 7153
This theorem is referenced by: (None)
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