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Mirrors > Home > ILE Home > Th. List > lelttrdi | Unicode version |
Description: If a number is less than another number, and the other number is less than or equal to a third number, the first number is less than the third number. (Contributed by Alexander van der Vekens, 24-Mar-2018.) |
Ref | Expression |
---|---|
lelttrdi.r | |
lelttrdi.l |
Ref | Expression |
---|---|
lelttrdi |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lelttrdi.r | . . . . 5 | |
2 | 1 | simp1d 998 | . . . 4 |
3 | 2 | adantr 274 | . . 3 |
4 | 1 | simp2d 999 | . . . 4 |
5 | 4 | adantr 274 | . . 3 |
6 | 1 | simp3d 1000 | . . . 4 |
7 | 6 | adantr 274 | . . 3 |
8 | simpr 109 | . . 3 | |
9 | lelttrdi.l | . . . 4 | |
10 | 9 | adantr 274 | . . 3 |
11 | 3, 5, 7, 8, 10 | ltletrd 8312 | . 2 |
12 | 11 | ex 114 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 w3a 967 wcel 2135 class class class wbr 3976 cr 7743 clt 7924 cle 7925 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-13 2137 ax-14 2138 ax-ext 2146 ax-sep 4094 ax-pow 4147 ax-pr 4181 ax-un 4405 ax-setind 4508 ax-cnex 7835 ax-resscn 7836 ax-pre-ltwlin 7857 |
This theorem depends on definitions: df-bi 116 df-3an 969 df-tru 1345 df-fal 1348 df-nf 1448 df-sb 1750 df-eu 2016 df-mo 2017 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-ne 2335 df-nel 2430 df-ral 2447 df-rex 2448 df-rab 2451 df-v 2723 df-dif 3113 df-un 3115 df-in 3117 df-ss 3124 df-pw 3555 df-sn 3576 df-pr 3577 df-op 3579 df-uni 3784 df-br 3977 df-opab 4038 df-xp 4604 df-cnv 4606 df-pnf 7926 df-mnf 7927 df-xr 7928 df-ltxr 7929 df-le 7930 |
This theorem is referenced by: difgtsumgt 9251 subfzo0 10167 |
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