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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 8289 |
. . 3
| |
| 2 | 1 | ltp1i 9199 |
. 2
|
| 3 | df-2 9316 |
. 2
| |
| 4 | 2, 3 | breqtrri 4141 |
1
|
| Colors of variables: wff set class |
| Syntax hints: class class
class wbr 4114 (class class class)co 6058
|
| 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 2207 ax-14 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 ax-un 4559 ax-setind 4664 ax-cnex 8234 ax-resscn 8235 ax-1cn 8236 ax-1re 8237 ax-icn 8238 ax-addcl 8239 ax-addrcl 8240 ax-mulcl 8241 ax-addcom 8243 ax-addass 8245 ax-i2m1 8248 ax-0lt1 8249 ax-0id 8251 ax-rnegex 8252 ax-pre-ltadd 8259 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-nel 2510 df-ral 2527 df-rex 2528 df-rab 2531 df-v 2817 df-dif 3216 df-un 3218 df-in 3220 df-ss 3227 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-br 4115 df-opab 4177 df-xp 4760 df-iota 5317 df-fv 5365 df-ov 6061 df-pnf 8326 df-mnf 8327 df-ltxr 8329 df-2 9316 |
| This theorem is referenced by: 1lt3 9429 1lt4 9432 1lt6 9441 1lt7 9447 1lt8 9454 1lt9 9462 1ne2 9464 1ap2 9465 1le2 9466 halflt1 9475 nn0ge2m1nn 9580 nn0n0n1ge2b 9678 halfnz 9695 1lt10 9868 fztpval 10442 ige2m2fzo 10568 wrdlenge2n0 11288 s3fv1g 11512 sqrt2gt1lt2 11762 ege2le3 12385 cos12dec 12482 ene1 12499 eap1 12500 n2dvds1 12626 bits0o 12664 bitsfzolem 12668 bitsfzo 12669 bitsfi 12671 2prm 12852 3prm 12853 4nprm 12854 isprm5 12867 dec2dvds 13137 dec5nprm 13140 dec2nprm 13141 2expltfac 13165 ballotfilem2 13175 basendxltplusgndx 13413 grpstrg 13426 grpbaseg 13427 grpplusgg 13428 rngstrg 13435 lmodstrd 13464 topgrpstrd 13496 reeff1o 15767 cosz12 15774 2logb9irrALT 15968 sqrt2cxp2logb9e3 15969 mersenne 15994 perfectlem1 15996 perfectlem2 15997 lgseisenlem1 16072 clwwlkext2edg 16546 eupth2lem3lem4fi 16597 |
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