Metamath Proof Explorer


Theorem replimd

Description: Construct a complex number from its real and imaginary parts. (Contributed by Mario Carneiro, 29-May-2016)

Ref Expression
Hypothesis recld.1
|- ( ph -> A e. CC )
Assertion replimd
|- ( ph -> A = ( ( Re ` A ) + ( _i x. ( Im ` A ) ) ) )

Proof

Step Hyp Ref Expression
1 recld.1
 |-  ( ph -> A e. CC )
2 replim
 |-  ( A e. CC -> A = ( ( Re ` A ) + ( _i x. ( Im ` A ) ) ) )
3 1 2 syl
 |-  ( ph -> A = ( ( Re ` A ) + ( _i x. ( Im ` A ) ) ) )