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| Description: 'Less than or equal to' in terms of 'less than'. |
| Ref | Expression |
|---|---|
| lt.1 |
|
| lt.2 |
|
| Ref | Expression |
|---|---|
| lenlti |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lt.1 |
. 2
| |
| 2 | lt.2 |
. 2
| |
| 3 | lenlt 6679 |
. 2
| |
| 4 | 1, 2, 3 | mp2an 761 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: ltnlei 6754 ltadd2i 6765 leadd1i 6767 prodge0i 6998 ltmul1ii 6999 lt2msqi 7064 le2msqi 7065 nnsubi 7140 elnnz1 7364 discrlem3 7908 sqrlem8 7930 climubii 8413 efltbi 8672 ruclem35 8813 cosh111lem2 10069 projlem13 10831 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-8 1306 ax-9 1307 ax-10 1308 ax-11 1309 ax-12 1310 ax-14 1312 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 ax-sep 3438 ax-nul 3445 ax-pow 3481 ax-pr 3524 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 df-ex 1327 df-sb 1536 df-eu 1775 df-mo 1776 df-clab 1872 df-cleq 1877 df-clel 1880 df-ne 2019 df-v 2294 df-dif 2597 df-un 2600 df-in 2603 df-ss 2605 df-nul 2876 df-pw 3035 df-sn 3049 df-pr 3050 df-op 3053 df-br 3339 df-opab 3396 df-xp 4000 df-cnv 4002 df-xr 6656 df-le 6658 |