| Metamath Proof Explorer |
< Previous
Next >
Related theorems Unicode version |
| Description: The image of a set under any function is also a set. Equivalent of Axiom of Replacement ax-rep 2683. 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 3561 |
. 2
| |
| 3 | 1, 2 | mpan2 694 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: isarep2 3564 isofrlem 3886 f1oweALT 3891 tz7.44-3 3915 tz9.12lem2 4632 zorn2lem7 4766 uniimadom 4782 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 959 ax-gen 960 ax-8 961 ax-10 963 ax-11 964 ax-12 965 ax-13 966 ax-14 967 ax-17 968 ax-4 970 ax-5o 972 ax-6o 975 ax-9o 1119 ax-10o 1136 ax-16 1206 ax-11o 1213 ax-ext 1452 ax-rep 2683 ax-sep 2693 ax-pow 2732 ax-pr 2769 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 978 df-sb 1168 df-eu 1375 df-mo 1376 df-clab 1457 df-cleq 1462 df-clel 1465 df-ne 1579 df-rex 1642 df-v 1803 df-dif 2039 df-un 2040 df-in 2041 df-ss 2043 df-nul 2271 df-pw 2392 df-sn 2402 df-pr 2403 df-op 2406 df-br 2610 df-opab 2657 df-id 2824 df-xp 3174 df-cnv 3176 df-co 3177 df-dm 3178 df-rn 3179 df-res 3180 df-ima 3181 df-fun 3182 |