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| Description: Theorem 19.11 of [Margaris] p. 89. |
| Ref | Expression |
|---|---|
| excom |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | excomim 1392 |
. 2
| |
| 2 | excomim 1392 |
. 2
| |
| 3 | 1, 2 | impbii 174 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: excom13 1452 exrot3 1453 ee4anv 1710 2exsb 1742 2euex 1844 2euexOLD 1845 2exeu 1850 2eu1 1853 2eu4 1856 rexcom 2243 gencbvex 2334 gencbvexOLD 2335 euind 2439 sbccomglem 2525 dfiun2gOLD 3284 iunn0OLD 3316 opabidOLD 3558 opelopabsb 3564 uniuni 3806 elvvv 4054 dmuni 4166 dm0rn0 4175 dmcossOLD 4212 dmcosseq 4214 dmcosseqOLD 4215 rnuni 4327 rnco 4404 coass 4415 imaiun 4840 dfoprab2 4917 iinon 5115 domen 5438 xpcomen 5498 xpassen 5500 scott0 5847 aceq5lem1 5897 aceq5lem4 5900 cflem 6053 genpass 6264 addcompr 6275 mulcompr 6277 ltexprlem1 6294 ltexprlem4 6297 reclem1pr 6308 reclem2pr 6309 suplem1pr 6313 oprabopabf 10157 extbas1 10291 elres 13824 frxp 13951 rcfpfillem3 14930 opabex3 15701 prtlem16 16272 pm11.6 16349 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-4 1319 ax-5o 1321 ax-6o 1324 |
| This theorem depends on definitions: df-bi 164 df-an 242 df-ex 1327 |