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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 8238 |
. . 3
| |
| 2 | 1 | ltp1i 9144 |
. 2
|
| 3 | df-2 9261 |
. 2
| |
| 4 | 2, 3 | breqtrri 4120 |
1
|
| Colors of variables: wff set class |
| Syntax hints: class class
class wbr 4093 (class class class)co 6028
|
| 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 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-setind 4641 ax-cnex 8183 ax-resscn 8184 ax-1cn 8185 ax-1re 8186 ax-icn 8187 ax-addcl 8188 ax-addrcl 8189 ax-mulcl 8190 ax-addcom 8192 ax-addass 8194 ax-i2m1 8197 ax-0lt1 8198 ax-0id 8200 ax-rnegex 8201 ax-pre-ltadd 8208 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-nel 2499 df-ral 2516 df-rex 2517 df-rab 2520 df-v 2805 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-br 4094 df-opab 4156 df-xp 4737 df-iota 5293 df-fv 5341 df-ov 6031 df-pnf 8275 df-mnf 8276 df-ltxr 8278 df-2 9261 |
| This theorem is referenced by: 1lt3 9374 1lt4 9377 1lt6 9386 1lt7 9392 1lt8 9399 1lt9 9407 1ne2 9409 1ap2 9410 1le2 9411 halflt1 9420 nn0ge2m1nn 9523 nn0n0n1ge2b 9620 halfnz 9637 1lt10 9810 fztpval 10380 ige2m2fzo 10506 wrdlenge2n0 11215 s3fv1g 11439 sqrt2gt1lt2 11689 ege2le3 12312 cos12dec 12409 ene1 12426 eap1 12427 n2dvds1 12553 bits0o 12591 bitsfzolem 12595 bitsfzo 12596 bitsfi 12598 2prm 12779 3prm 12780 4nprm 12781 isprm5 12794 dec2dvds 13064 dec5nprm 13067 dec2nprm 13068 2expltfac 13092 basendxltplusgndx 13276 grpstrg 13289 grpbaseg 13290 grpplusgg 13291 rngstrg 13298 lmodstrd 13327 topgrpstrd 13359 reeff1o 15584 cosz12 15591 2logb9irrALT 15785 sqrt2cxp2logb9e3 15786 mersenne 15811 perfectlem1 15813 perfectlem2 15814 lgseisenlem1 15889 clwwlkext2edg 16363 eupth2lem3lem4fi 16414 |
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