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| Mirrors > Home > ILE Home > Th. List > 1lt2 | Unicode version | ||
| Description: 1 is less than 2. (Contributed by NM, 24-Feb-2005.) |
| Ref | Expression |
|---|---|
| 1lt2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1re 8315 |
. . 3
| |
| 2 | 1 | ltp1i 9225 |
. 2
|
| 3 | df-2 9342 |
. 2
| |
| 4 | 2, 3 | breqtrri 4152 |
1
|
| Colors of variables: wff set class |
| Syntax hints: class class
class wbr 4125 (class class class)co 6075
|
| This theorem was proved from 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 4244 ax-pow 4306 ax-pr 4341 ax-un 4573 ax-setind 4679 ax-cnex 8260 ax-resscn 8261 ax-1cn 8262 ax-1re 8263 ax-icn 8264 ax-addcl 8265 ax-addrcl 8266 ax-mulcl 8267 ax-addcom 8269 ax-addass 8271 ax-i2m1 8274 ax-0lt1 8275 ax-0id 8277 ax-rnegex 8278 ax-pre-ltadd 8285 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 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-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3687 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-br 4126 df-opab 4188 df-xp 4775 df-iota 5332 df-fv 5380 df-ov 6078 df-pnf 8352 df-mnf 8353 df-ltxr 8355 df-2 9342 |
| This theorem is referenced by: 1lt3 9455 1lt4 9458 1lt6 9467 1lt7 9473 1lt8 9480 1lt9 9488 1ne2 9490 1ap2 9491 1le2 9492 halflt1 9501 nn0ge2m1nn 9606 nn0n0n1ge2b 9704 halfnz 9721 1lt10 9894 fztpval 10468 ige2m2fzo 10594 wrdlenge2n0 11318 s3fv1g 11542 sqrt2gt1lt2 11793 ege2le3 12416 cos12dec 12513 ene1 12530 eap1 12531 n2dvds1 12657 bits0o 12695 bitsfzolem 12699 bitsfzo 12700 bitsfi 12702 2prm 12883 3prm 12884 4nprm 12885 isprm5 12898 dec2dvds 13168 dec5nprm 13171 dec2nprm 13172 2expltfac 13196 ballotfilem2 13206 basendxltplusgndx 13444 grpstrg 13457 grpbaseg 13458 grpplusgg 13459 rngstrg 13466 lmodstrd 13495 topgrpstrd 13527 reeff1o 15797 cosz12 15804 2logb9irrALT 15999 sqrt2cxp2logb9e3 16000 mersenne 16025 perfectlem1 16027 perfectlem2 16028 lgseisenlem1 16103 clwwlkext2edg 16577 eupth2lem3lem4fi 16628 |
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