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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 8402 |
. 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 4249 ax-pow 4311 ax-pr 4346 |
| 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 4131 df-opab 4193 df-xp 4780 df-cnv 4782 df-xr 8365 df-le 8367 |
| This theorem is used by: ltnsymd 8448 nltled 8449 lensymd 8450 leadd1 8760 lemul1 8924 leltap 8956 ap0gt0 8971 prodgt0 9185 prodge0 9187 lediv1 9202 lemuldiv 9214 lerec 9217 lt2msq 9219 le2msq 9234 squeeze0 9237 suprleubex 9287 0mnnnnn0 9600 elnn0z 9662 uzm1 9963 infregelbex 10008 fztri3or 10454 fzdisj 10468 uzdisj 10511 nn0disj 10556 fzouzdisj 10600 elfzonelfzo 10659 qdcle 10692 flqeqceilz 10770 modifeq2int 10838 modsumfzodifsn 10848 nn0leexp2 11164 expcanlem 11169 fimaxq 11286 hashf1 11303 swrdccatin2 11517 resqrexlemoverl 11803 leabs 11856 absle 11872 maxleast 11996 minmax 12014 climge0 12110 pcfac 13152 logdivlt 16088 logdivle 16089 cxple 16114 gausslemma2dlem1a 16343 |
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