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| Mirrors > Home > ILE Home > Th. List > lensymd | Unicode version | ||
| Description: 'Less than or equal to' implies 'not less than'. (Contributed by Glauco Siliprandi, 11-Dec-2019.) |
| Ref | Expression |
|---|---|
| ltd.1 |
|
| ltd.2 |
|
| lensymd.3 |
|
| Ref | Expression |
|---|---|
| lensymd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lensymd.3 |
. 2
| |
| 2 | ltd.1 |
. . 3
| |
| 3 | ltd.2 |
. . 3
| |
| 4 | 2, 3 | lenltd 8446 |
. 2
|
| 5 | 1, 4 | mpbid 147 |
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: lbinf 9281 suprzubdc 10682 zsupssdc 10684 flaplt 10733 addmodlteq 10850 iseqf1olemab 10954 seq3f1olemqsumk 10964 seq3f1olemqsum 10965 seqf1oglem1 10971 seqf1oglem2 10972 nn0ltexp2 11163 sshashneg 11297 zfz1isolemiso 11307 seq3coll 11310 ccatalpha 11397 sq01 11676 maxleim 11988 maxabslemval 11991 cvgratz 12318 divalglemnqt 12706 bezoutlemsup 12805 dfgcd2 12810 nninfctlemfo 12836 lcmgcdlem 12874 4sqlem11 13203 ballotfilemimin 13301 ballotfilemfrcn0 13325 gzsumfzval 13764 lgsval2lem 16295 trilpolemgt1 17255 trilpolemlt1 17257 |
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