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Definition df-int 3927
Description: Define the intersection of a class. Definition 7.35 of [TakeutiZaring] p. 44. For example, 1 , 3 1 , 8 1 . Compare this with the intersection of two classes, df-in 3213. (Contributed by NM, 18-Aug-1993.)
Assertion
Ref Expression
df-int
Distinct variable group:   ,,

Detailed syntax breakdown of Definition df-int
StepHypRef Expression
1 cA . . 3
21cint 3926 . 2
3 vy . . . . . . 7
43cv 1641 . . . . . 6
54, 1wcel 1710 . . . . 5
6 vx . . . . . 6
76, 3wel 1711 . . . . 5
85, 7wi 4 . . . 4
98, 3wal 1540 . . 3
109, 6cab 2339 . 2
112, 10wceq 1642 1
Colors of variables: wff setvar class
This definition is referenced by:  dfint2  3928  elint  3932  int0  3940  dfiin2g  4000
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