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Mirrors > Home > ILE Home > Th. List > sonr | Unicode version |
Description: A strict order relation is irreflexive. (Contributed by NM, 24-Nov-1995.) |
Ref | Expression |
---|---|
sonr |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sopo 4296 | . 2 | |
2 | poirr 4290 | . 2 | |
3 | 1, 2 | sylan 281 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wcel 2141 class class class wbr 3987 wpo 4277 wor 4278 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 609 ax-in2 610 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-ext 2152 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-nf 1454 df-sb 1756 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ral 2453 df-v 2732 df-un 3125 df-sn 3587 df-pr 3588 df-op 3590 df-br 3988 df-po 4279 df-iso 4280 |
This theorem is referenced by: sotricim 4306 sotritrieq 4308 soirri 5003 addnqprlemfl 7514 addnqprlemfu 7515 mulnqprlemfl 7530 mulnqprlemfu 7531 1ne0sr 7721 |
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