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Mirrors > Home > ILE Home > Th. List > 0cnALT | Unicode version |
Description: Alternate proof of 0cn 7019. (Contributed by NM, 19-Feb-2005.) (Revised by Mario Carneiro, 27-May-2016.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
0cnALT |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-icn 6979 | . . 3 | |
2 | cnegex 7189 | . . 3 | |
3 | 1, 2 | ax-mp 7 | . 2 |
4 | addcl 7006 | . . . . 5 | |
5 | 1, 4 | mpan 400 | . . . 4 |
6 | eleq1 2100 | . . . 4 | |
7 | 5, 6 | syl5ibcom 144 | . . 3 |
8 | 7 | rexlimiv 2427 | . 2 |
9 | 3, 8 | ax-mp 7 | 1 |
Colors of variables: wff set class |
Syntax hints: wceq 1243 wcel 1393 wrex 2307 (class class class)co 5512 cc 6887 cc0 6889 ci 6891 caddc 6892 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-resscn 6976 ax-1cn 6977 ax-icn 6979 ax-addcl 6980 ax-addrcl 6981 ax-mulcl 6982 ax-addcom 6984 ax-addass 6986 ax-distr 6988 ax-i2m1 6989 ax-0id 6992 ax-rnegex 6993 ax-cnre 6995 |
This theorem depends on definitions: df-bi 110 df-3an 887 df-tru 1246 df-nf 1350 df-sb 1646 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-ral 2311 df-rex 2312 df-v 2559 df-un 2922 df-in 2924 df-ss 2931 df-sn 3381 df-pr 3382 df-op 3384 df-uni 3581 df-br 3765 df-iota 4867 df-fv 4910 df-ov 5515 |
This theorem is referenced by: (None) |
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