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| Mirrors > Home > ILE Home > Th. List > lenltd | Unicode version | ||
| Description: 'Less than or equal to' in terms of 'less than'. (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| ltd.1 |
|
| ltd.2 |
|
| Ref | Expression |
|---|---|
| lenltd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltd.1 |
. 2
| |
| 2 | ltd.2 |
. 2
| |
| 3 | lenlt 8407 |
. 2
| |
| 4 | 1, 2, 3 | syl2anc 415 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4251 ax-pow 4313 ax-pr 4348 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-br 4132 df-opab 4194 df-xp 4782 df-cnv 4784 df-xr 8370 df-le 8372 |
| This theorem is used by: ltnsymd 8453 nltled 8454 lensymd 8455 leadd1 8765 lemul1 8929 leltap 8961 ap0gt0 8976 prodgt0 9190 prodge0 9192 lediv1 9207 lemuldiv 9219 lerec 9222 lt2msq 9224 le2msq 9239 squeeze0 9242 suprleubex 9292 0mnnnnn0 9606 elnn0z 9668 uzm1 9969 infregelbex 10014 fztri3or 10460 fzdisj 10474 uzdisj 10517 nn0disj 10562 fzouzdisj 10606 elfzonelfzo 10665 qdcle 10698 flqeqceilz 10776 modifeq2int 10844 modsumfzodifsn 10854 nn0leexp2 11170 expcanlem 11175 fimaxq 11292 hashf1 11309 swrdccatin2 11523 resqrexlemoverl 11809 leabs 11862 absle 11878 maxleast 12002 minmax 12020 climge0 12116 pcfac 13158 logdivlt 16124 logdivle 16125 cxple 16152 gausslemma2dlem1a 16382 |
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