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Definition df-cup 5742
Description: Define the cup function. (Contributed by SF, 9-Feb-2015.)
Assertion
Ref Expression
df-cup Cup = (x V, y V (xy))
Distinct variable group:   x,y

Detailed syntax breakdown of Definition df-cup
StepHypRef Expression
1 ccup 5741 . 2 class Cup
2 vx . . 3 setvar x
3 vy . . 3 setvar y
4 cvv 2859 . . 3 class V
52cv 1641 . . . 4 class x
63cv 1641 . . . 4 class y
75, 6cun 3207 . . 3 class (xy)
82, 3, 4, 4, 7cmpt2 5653 . 2 class (x V, y V (xy))
91, 8wceq 1642 1 wff Cup = (x V, y V (xy))
Colors of variables: wff setvar class
This definition is referenced by:  cupvalg  5812  fncup  5813  cupex  5816
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