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Definition df-bj-ccbar 33103
Description: Definition of the set of extended complex numbers CCbar. (Contributed by BJ, 22-Jun-2019.)
Assertion
Ref Expression
df-bj-ccbar |- CCbar = ( CC u. CCinfty )
Detailed syntax breakdown of Definition df-bj-ccbar
StepHypRef Expression
1 cccbar 33102 . 2 class CCbar
2 cc 9934 . . 3 class CC
3 cccinfty 33098 . . 3 class CCinfty
42, 3cun 3572 . 2 class ( CC u. CCinfty )
51, 4wceq 1483 1 wff CCbar = ( CC u. CCinfty )
Colors of variables: wff setvar class
This definition is referenced by:  bj-ccssccbar  33104  bj-ccinftyssccbar  33105
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