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Mirrors > Home > ILE Home > Th. List > 0cnALT | Unicode version |
Description: Alternate proof of 0cn 8013. (Contributed by NM, 19-Feb-2005.) (Revised by Mario Carneiro, 27-May-2016.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
0cnALT |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-icn 7969 |
. . 3
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2 | cnegex 8199 |
. . 3
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3 | 1, 2 | ax-mp 5 |
. 2
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4 | addcl 7999 |
. . . . 5
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5 | 1, 4 | mpan 424 |
. . . 4
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6 | eleq1 2256 |
. . . 4
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7 | 5, 6 | syl5ibcom 155 |
. . 3
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8 | 7 | rexlimiv 2605 |
. 2
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9 | 3, 8 | ax-mp 5 |
1
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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 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2175 ax-resscn 7966 ax-1cn 7967 ax-icn 7969 ax-addcl 7970 ax-addrcl 7971 ax-mulcl 7972 ax-addcom 7974 ax-addass 7976 ax-distr 7978 ax-i2m1 7979 ax-0id 7982 ax-rnegex 7983 ax-cnre 7985 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-v 2762 df-un 3158 df-in 3160 df-ss 3167 df-sn 3625 df-pr 3626 df-op 3628 df-uni 3837 df-br 4031 df-iota 5216 df-fv 5263 df-ov 5922 |
This theorem is referenced by: (None) |
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