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Related theorems Unicode version |
| Description: 'Less than' expressed in terms of 'less than or equal to'. |
| Ref | Expression |
|---|---|
| ltlen |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltle 6981 |
. . 3
| |
| 2 | ltne 6977 |
. . . 4
| |
| 3 | 2 | 3expia 1347 |
. . 3
|
| 4 | 1, 3 | jcad 592 |
. 2
|
| 5 | leloe 6979 |
. . . 4
| |
| 6 | ax-1 4 |
. . . . 5
| |
| 7 | df-ne 2297 |
. . . . . 6
| |
| 8 | pm2.24 131 |
. . . . . . 7
| |
| 9 | 8 | eqcoms 2173 |
. . . . . 6
|
| 10 | 7, 9 | syl5bi 270 |
. . . . 5
|
| 11 | 6, 10 | jaoi 549 |
. . . 4
|
| 12 | 5, 11 | syl6bi 284 |
. . 3
|
| 13 | 12 | imp3a 491 |
. 2
|
| 14 | 4, 13 | impbid 250 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: ltleni 7037 rpneg 7698 uzm1 8066 eluz2b3 8095 elfzp1 8160 metgt0 10113 iintlem1 16063 uzm1OLD 16869 fzm1 16881 recms 17095 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1621 ax-gen 1622 ax-8 1623 ax-9 1624 ax-10 1625 ax-11 1626 ax-12 1627 ax-13 1628 ax-14 1629 ax-17 1634 ax-4 1637 ax-5o 1639 ax-6o 1642 ax-9o 1792 ax-10o 1810 ax-16 1883 ax-11o 1893 ax-ext 2152 ax-rep 3628 ax-sep 3638 ax-nul 3645 ax-pow 3681 ax-pr 3719 ax-un 3961 ax-cnex 6885 ax-resscn 6886 ax-pre-lttri 6903 ax-pre-lttrn 6904 |
| This theorem depends on definitions: df-bi 232 df-or 434 df-an 435 df-3or 1131 df-3an 1132 df-ex 1645 df-sb 1845 df-eu 2070 df-mo 2071 df-clab 2158 df-cleq 2163 df-clel 2166 df-ne 2297 df-nel 2298 df-ral 2389 df-rex 2390 df-rab 2392 df-v 2571 df-dif 2862 df-un 2864 df-in 2866 df-ss 2868 df-nul 3115 df-pw 3261 df-sn 3274 df-pr 3275 df-op 3278 df-uni 3399 df-br 3540 df-opab 3598 df-id 3779 df-po 3784 df-so 3796 df-xp 4165 df-rel 4166 df-cnv 4167 df-co 4168 df-dm 4169 df-rn 4170 df-res 4171 df-ima 4172 df-fun 4173 df-fn 4174 df-f 4175 df-f1 4176 df-fo 4177 df-f1o 4178 df-fv 4179 df-er 5519 df-en 5631 df-dom 5632 df-sdom 5633 df-pnf 6948 df-mnf 6949 df-xr 6950 df-ltxr 6951 df-le 6952 |