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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 8156 |
. . 3
| |
| 2 | 1 | ltp1i 9063 |
. 2
|
| 3 | df-2 9180 |
. 2
| |
| 4 | 2, 3 | breqtrri 4110 |
1
|
| Colors of variables: wff set class |
| Syntax hints: class class
class wbr 4083 (class class class)co 6007
|
| 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 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4202 ax-pow 4258 ax-pr 4293 ax-un 4524 ax-setind 4629 ax-cnex 8101 ax-resscn 8102 ax-1cn 8103 ax-1re 8104 ax-icn 8105 ax-addcl 8106 ax-addrcl 8107 ax-mulcl 8108 ax-addcom 8110 ax-addass 8112 ax-i2m1 8115 ax-0lt1 8116 ax-0id 8118 ax-rnegex 8119 ax-pre-ltadd 8126 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-nel 2496 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2801 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-br 4084 df-opab 4146 df-xp 4725 df-iota 5278 df-fv 5326 df-ov 6010 df-pnf 8194 df-mnf 8195 df-ltxr 8197 df-2 9180 |
| This theorem is referenced by: 1lt3 9293 1lt4 9296 1lt6 9305 1lt7 9311 1lt8 9318 1lt9 9326 1ne2 9328 1ap2 9329 1le2 9330 halflt1 9339 nn0ge2m1nn 9440 nn0n0n1ge2b 9537 halfnz 9554 1lt10 9727 fztpval 10291 ige2m2fzo 10416 wrdlenge2n0 11120 s3fv1g 11340 sqrt2gt1lt2 11576 ege2le3 12198 cos12dec 12295 ene1 12312 eap1 12313 n2dvds1 12439 bits0o 12477 bitsfzolem 12481 bitsfzo 12482 bitsfi 12484 2prm 12665 3prm 12666 4nprm 12667 isprm5 12680 dec2dvds 12950 dec5nprm 12953 dec2nprm 12954 2expltfac 12978 basendxltplusgndx 13162 grpstrg 13175 grpbaseg 13176 grpplusgg 13177 rngstrg 13184 lmodstrd 13213 topgrpstrd 13245 reeff1o 15463 cosz12 15470 2logb9irrALT 15664 sqrt2cxp2logb9e3 15665 mersenne 15687 perfectlem1 15689 perfectlem2 15690 lgseisenlem1 15765 clwwlkext2edg 16164 |
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