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| Mirrors > Home > ILE Home > Th. List > coexg | Unicode version | ||
| Description: The composition of two sets is a set. (Contributed by NM, 19-Mar-1998.) |
| Ref | Expression |
|---|---|
| coexg |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cossxp 5287 |
. 2
| |
| 2 | dmexg 5023 |
. . 3
| |
| 3 | rnexg 5024 |
. . 3
| |
| 4 | xpexg 4866 |
. . 3
| |
| 5 | 2, 3, 4 | syl2anr 290 |
. 2
|
| 6 | ssexg 4251 |
. 2
| |
| 7 | 1, 5, 6 | sylancr 414 |
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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 ax-un 4556 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-v 2817 df-un 3217 df-in 3219 df-ss 3226 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-br 4112 df-opab 4174 df-xp 4757 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-rn 4762 |
| This theorem is referenced by: coex 5310 suppcofn 6468 seqf1oglem2 10886 seqf1og 10887 gsumwmhm 13728 gsumfzreidx 14071 gsumfzmhm 14077 znval 14801 znle 14802 znbaslemnn 14804 climcncf 15466 gfsumval 16879 gsumgfsumlem 16882 |
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