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Definition df-coda 16882
Description: Definition of the codomain extractor for an arrow. (Contributed by FL, 26-Oct-2007.) (Revised by Mario Carneiro, 11-Jan-2017.)
Assertion
Ref Expression
df-coda coda = (2nd ∘ 1st )

Detailed syntax breakdown of Definition df-coda
StepHypRef Expression
1 ccoda 16878 . 2 class coda
2 c2nd 7314 . . 3 class 2nd
3 c1st 7313 . . 3 class 1st
42, 3ccom 5253 . 2 class (2nd ∘ 1st )
51, 4wceq 1631 1 wff coda = (2nd ∘ 1st )
Colors of variables: wff setvar class
This definition is referenced by:  homacd  16898  cdaf  16907
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