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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 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sopo 4348 |
. 2
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2 | poirr 4342 |
. 2
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3 | 1, 2 | sylan 283 |
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-in1 615 ax-in2 616 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-ext 2178 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1475 df-sb 1777 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ral 2480 df-v 2765 df-un 3161 df-sn 3628 df-pr 3629 df-op 3631 df-br 4034 df-po 4331 df-iso 4332 |
This theorem is referenced by: sotricim 4358 sotritrieq 4360 soirri 5064 addnqprlemfl 7624 addnqprlemfu 7625 mulnqprlemfl 7640 mulnqprlemfu 7641 1ne0sr 7831 |
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