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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 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1re 7951 |
. . 3
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2 | 1 | ltp1i 8856 |
. 2
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3 | df-2 8972 |
. 2
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4 | 2, 3 | breqtrri 4028 |
1
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Colors of variables: wff set class |
Syntax hints: class class
class wbr 4001 (class class class)co 5870
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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 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-13 2150 ax-14 2151 ax-ext 2159 ax-sep 4119 ax-pow 4172 ax-pr 4207 ax-un 4431 ax-setind 4534 ax-cnex 7897 ax-resscn 7898 ax-1cn 7899 ax-1re 7900 ax-icn 7901 ax-addcl 7902 ax-addrcl 7903 ax-mulcl 7904 ax-addcom 7906 ax-addass 7908 ax-i2m1 7911 ax-0lt1 7912 ax-0id 7914 ax-rnegex 7915 ax-pre-ltadd 7922 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-fal 1359 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ne 2348 df-nel 2443 df-ral 2460 df-rex 2461 df-rab 2464 df-v 2739 df-dif 3131 df-un 3133 df-in 3135 df-ss 3142 df-pw 3577 df-sn 3598 df-pr 3599 df-op 3601 df-uni 3809 df-br 4002 df-opab 4063 df-xp 4630 df-iota 5175 df-fv 5221 df-ov 5873 df-pnf 7988 df-mnf 7989 df-ltxr 7991 df-2 8972 |
This theorem is referenced by: 1lt3 9084 1lt4 9087 1lt6 9096 1lt7 9102 1lt8 9109 1lt9 9117 1ne2 9119 1ap2 9120 1le2 9121 halflt1 9130 nn0ge2m1nn 9230 nn0n0n1ge2b 9326 halfnz 9343 1lt10 9516 fztpval 10076 ige2m2fzo 10191 sqrt2gt1lt2 11049 ege2le3 11670 cos12dec 11766 ene1 11783 eap1 11784 n2dvds1 11907 2prm 12117 3prm 12118 4nprm 12119 isprm5 12132 basendxltplusgndx 12562 grpstrg 12574 grpbaseg 12575 grpplusgg 12576 rngstrg 12583 lmodstrd 12612 topgrpstrd 12641 reeff1o 13976 cosz12 13983 2logb9irrALT 14174 sqrt2cxp2logb9e3 14175 |
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