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| Description: Define the image of a class. Definition 6.6(2) of [TakeutiZaring] p. 24. For an alternate definition, see dfima2 3497. |
| Ref | Expression |
|---|---|
| df-ima |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cA |
. . 3
| |
| 2 | cB |
. . 3
| |
| 3 | 1, 2 | cima 3254 |
. 2
|
| 4 | 1, 2 | cres 3253 |
. . 3
|
| 5 | 4 | crn 3252 |
. 2
|
| 6 | 3, 5 | wceq 992 |
1
|
| Colors of variables: wff set class |
| This definition is referenced by: resima 3481 imaeq1 3491 imaeq2 3492 dfima2 3497 rnresi 3510 resiima 3511 ima0 3512 imadisj 3514 imass1 3524 imass2 3525 ndmima 3526 imaundi 3545 imaundir 3546 dfrn4 3590 imacnvcnv 3593 imadmres 3596 rnco2 3606 funcnvres 3673 funimacnv 3676 resfunexg 3685 fores 3789 f1orescnv 3812 foimacnv 3814 resdif 3816 fvres 3845 funfvima 3966 curry1 4193 curry2 4196 tz7.44-3 4231 tz7.48-2 4258 tz7.49c 4261 sbthlem4 4595 sbthlem6 4597 sbthlem8 4599 numthlem 4929 zorn2lem1 4934 imadomg 4952 subtop 7858 subgrnss 8361 ghsubgi 8379 efghgrpilem 8991 dfrelog 9028 imrescl 10807 ordtypelem1 11427 ordtypelem6 11432 ordtypelem7 11433 ivthALT 11515 filnetlem5 11767 filnet 11768 ssga 11777 heiborlem33 12043 |