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| Mirrors > Home > ILE Home > Th. List > addex | Unicode version | ||
| Description: The addition operation is a set. (Contributed by NM, 19-Oct-2004.) (Revised by Mario Carneiro, 17-Nov-2014.) | 
| Ref | Expression | 
|---|---|
| addex | 
 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | ax-addf 8001 | 
. 2
 | |
| 2 | cnex 8003 | 
. . 3
 | |
| 3 | 2, 2 | xpex 4778 | 
. 2
 | 
| 4 | fex2 5426 | 
. 2
 | |
| 5 | 1, 3, 2, 4 | mp3an 1348 | 
1
 | 
| Colors of variables: wff set class | 
| Syntax hints:     | 
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-13 2169 ax-14 2170 ax-ext 2178 ax-sep 4151 ax-pow 4207 ax-pr 4242 ax-un 4468 ax-cnex 7970 ax-addf 8001 | 
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ral 2480 df-rex 2481 df-v 2765 df-un 3161 df-in 3163 df-ss 3170 df-pw 3607 df-sn 3628 df-pr 3629 df-op 3631 df-uni 3840 df-br 4034 df-opab 4095 df-xp 4669 df-rel 4670 df-cnv 4671 df-dm 4673 df-rn 4674 df-fun 5260 df-fn 5261 df-f 5262 | 
| This theorem is referenced by: (None) | 
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