Metamath Proof Explorer

Theorem cxp1d

Description: Value of the complex power function at one. (Contributed by Mario Carneiro, 30-May-2016)

Ref Expression
Hypothesis cxp0d.1 φ A
Assertion cxp1d φ A 1 = A


Step Hyp Ref Expression
1 cxp0d.1 φ A
2 cxp1 A A 1 = A
3 1 2 syl φ A 1 = A