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Definition df-int 4287
Description: Define the intersection of a class. Definition 7.35 of [TakeutiZaring] p. 44. For example, . Compare this with the intersection of two classes, df-in 3482. (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 4286 . 2
3 vy . . . . . . 7
43cv 1394 . . . . . 6
54, 1wcel 1818 . . . . 5
6 vx . . . . . 6
76, 3wel 1819 . . . . 5
85, 7wi 4 . . . 4
98, 3wal 1393 . . 3
109, 6cab 2442 . 2
112, 10wceq 1395 1
Colors of variables: wff setvar class
This definition is referenced by:  dfint2  4288  elint  4292  int0  4300  dfiin2g  4363
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