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| Description: The image of a set under any function is also a set. Equivalent of Axiom of Replacement ax-rep 2767. Axiom 39(vi) of [Quine] p. 284. Compare Exercise 9 of [TakeutiZaring] p. 29. |
| Ref | Expression |
|---|---|
| zfrep5.1 |
|
| Ref | Expression |
|---|---|
| funimaex |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | zfrep5.1 |
. 2
| |
| 2 | funimaexg 3681 |
. 2
| |
| 3 | 1, 2 | mpan2 700 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: isarep2 3684 isofrlem 4015 f1oweALT 4020 tz7.44-3 4231 tz9.12lem2 4806 zorn2lem7 4940 uniimadom 4956 ordtypelem7 11433 compfipin0lem 11492 compfipin0 11493 neibastop2lem4 11583 filrn 11643 elfilmap 11690 fmf 11693 fmbas 11694 heiborlem7 12017 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 998 ax-gen 999 ax-8 1000 ax-10 1002 ax-11 1003 ax-12 1004 ax-13 1005 ax-14 1006 ax-17 1007 ax-4 1009 ax-5o 1011 ax-6o 1014 ax-9o 1159 ax-10o 1177 ax-16 1247 ax-11o 1255 ax-ext 1500 ax-rep 2767 ax-sep 2777 ax-pow 2818 ax-pr 2855 |
| This theorem depends on definitions: df-bi 145 df-or 222 df-an 223 df-ex 1017 df-sb 1209 df-eu 1421 df-mo 1422 df-clab 1506 df-cleq 1511 df-clel 1514 df-ne 1630 df-rex 1696 df-v 1858 df-dif 2101 df-un 2102 df-in 2103 df-ss 2105 df-nul 2333 df-pw 2459 df-sn 2470 df-pr 2471 df-op 2474 df-br 2693 df-opab 2741 df-id 2913 df-xp 3265 df-cnv 3267 df-co 3268 df-dm 3269 df-rn 3270 df-res 3271 df-ima 3272 df-fun 3273 |