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Definition df-im 12934
Description: Define a function whose value is the imaginary part of a complex number. See imval 12940 for its value, imcli 13001 for its closure, and replim 12949 for its use in decomposing a complex number. (Contributed by NM, 9-May-1999.)
Assertion
Ref Expression
df-im

Detailed syntax breakdown of Definition df-im
StepHypRef Expression
1 cim 12931 . 2
2 vx . . 3
3 cc 9511 . . 3
42cv 1394 . . . . 5
5 ci 9515 . . . . 5
6 cdiv 10231 . . . . 5
74, 5, 6co 6296 . . . 4
8 cre 12930 . . . 4
97, 8cfv 5593 . . 3
102, 3, 9cmpt 4510 . 2
111, 10wceq 1395 1
Colors of variables: wff setvar class
This definition is referenced by:  imval  12940  imf  12946  cnre2csqima  27893
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