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| Description: 'Less than or equal to' in terms of 'less than'. |
| Ref | Expression |
|---|---|
| lt.1 |
|
| lt.2 |
|
| Ref | Expression |
|---|---|
| lenlt |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lt.1 |
. 2
| |
| 2 | lt.2 |
. 2
| |
| 3 | lenltt 5490 |
. 2
| |
| 4 | 1, 2, 3 | mp2an 696 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: ltnle 5560 ltadd2 5572 leadd1 5574 prodge0 5784 ltmul1i 5785 lt2msq 5837 le2msq 5838 nnsub 5911 elnnz1 6110 discrlem3 6596 sqrlem8 6618 climubi 7097 efltb 7356 ruclem35 7495 cosh111lem2 8649 projlem13 9137 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 960 ax-gen 961 ax-8 962 ax-10 964 ax-11 965 ax-12 966 ax-13 967 ax-14 968 ax-17 969 ax-4 971 ax-5o 973 ax-6o 976 ax-9o 1121 ax-10o 1138 ax-16 1208 ax-11o 1216 ax-ext 1457 ax-sep 2698 ax-pow 2737 ax-pr 2774 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 979 df-sb 1170 df-eu 1380 df-mo 1381 df-clab 1462 df-cleq 1467 df-clel 1470 df-ne 1584 df-v 1808 df-dif 2045 df-un 2046 df-in 2047 df-ss 2049 df-nul 2277 df-pw 2398 df-sn 2408 df-pr 2409 df-op 2412 df-br 2615 df-opab 2662 df-xp 3179 df-cnv 3181 df-xr 5469 df-le 5471 |