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| Mirrors > Home > ILE Home > Th. List > ltnri | Unicode version | ||
| Description: 'Less than' is irreflexive. (Contributed by NM, 18-Aug-1999.) |
| Ref | Expression |
|---|---|
| lt.1 |
|
| Ref | Expression |
|---|---|
| ltnri |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lt.1 |
. 2
| |
| 2 | ltnr 8352 |
. 2
| |
| 3 | 1, 2 | ax-mp 5 |
1
|
| 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 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 ax-un 4556 ax-setind 4661 ax-cnex 8220 ax-resscn 8221 ax-pre-ltirr 8241 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-nel 2510 df-ral 2527 df-rex 2528 df-rab 2531 df-v 2817 df-dif 3215 df-un 3217 df-in 3219 df-ss 3226 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-br 4112 df-opab 4174 df-xp 4757 df-pnf 8312 df-mnf 8313 df-ltxr 8315 |
| This theorem is referenced by: lt0ne0d 8789 sup3exmid 9233 elnnnn0b 9542 0nrp 10025 xposdif 10218 exmidunben 13194 pilem3 15665 coseq0q4123 15716 gausslemma2dlem0i 15947 clwwlkn0 16420 konigsberg 16505 |
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