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| Mirrors > Home > ILE Home > Th. List > 1re | GIF version | ||
| Description: 1 is a real number. (Contributed by Jim Kingdon, 13-Jan-2020.) |
| Ref | Expression |
|---|---|
| 1re | ⊢ 1 ∈ ℝ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-1re 8126 | 1 ⊢ 1 ∈ ℝ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2202 ℝcr 8031 1c1 8033 |
| This theorem was proved from axioms: ax-1re 8126 |
| This theorem is referenced by: 0re 8179 1red 8194 1xr 8238 0lt1 8306 peano2re 8315 peano2rem 8446 0reALT 8476 0le1 8661 1le1 8752 inelr 8764 1ap0 8770 eqneg 8912 ltp1 9024 ltm1 9026 recgt0 9030 mulgt1 9043 ltmulgt11 9044 lemulge11 9046 reclt1 9076 recgt1 9077 recgt1i 9078 recp1lt1 9079 recreclt 9080 sup3exmid 9137 cju 9141 peano5nni 9146 nnssre 9147 1nn 9154 nnge1 9166 nnle1eq1 9167 nngt0 9168 nnnlt1 9169 nn1gt1 9177 nngt1ne1 9178 nnrecre 9180 nnrecgt0 9181 nnsub 9182 2re 9213 3re 9217 4re 9220 5re 9222 6re 9224 7re 9226 8re 9228 9re 9230 0le2 9233 2pos 9234 3pos 9237 4pos 9240 5pos 9243 6pos 9244 7pos 9245 8pos 9246 9pos 9247 neg1rr 9249 neg1lt0 9251 1lt2 9313 1lt3 9315 1lt4 9318 1lt5 9322 1lt6 9327 1lt7 9333 1lt8 9340 1lt9 9348 1ne2 9350 1ap2 9351 1le2 9352 1le3 9355 halflt1 9361 iap0 9367 addltmul 9381 elnnnn0c 9447 nn0ge2m1nn 9462 elnnz1 9502 zltp1le 9534 zleltp1 9535 recnz 9573 gtndiv 9575 3halfnz 9577 1lt10 9749 eluzp1m1 9780 eluzp1p1 9782 eluz2b2 9837 1rp 9892 divlt1lt 9959 divle1le 9960 nnledivrp 10001 0elunit 10221 1elunit 10222 divelunit 10237 lincmb01cmp 10238 iccf1o 10239 unitssre 10240 fzpreddisj 10306 fznatpl1 10311 fztpval 10318 qbtwnxr 10518 flqbi2 10552 fldiv4p1lem1div2 10566 flqdiv 10584 seqf1oglem1 10782 reexpcl 10819 reexpclzap 10822 expge0 10838 expge1 10839 expgt1 10840 bernneq 10923 bernneq2 10924 expnbnd 10926 expnlbnd 10927 expnlbnd2 10928 nn0ltexp2 10972 facwordi 11003 faclbnd3 11006 faclbnd6 11007 facavg 11009 hashtpglem 11111 lsw0 11165 cjexp 11458 re1 11462 im1 11463 rei 11464 imi 11465 caucvgre 11546 sqrt1 11611 sqrt2gt1lt2 11614 abs1 11637 caubnd2 11682 mulcn2 11877 reccn2ap 11878 expcnvap0 12068 geo2sum 12080 cvgratnnlemrate 12096 fprodge0 12203 fprodge1 12205 fprodle 12206 ere 12236 ege2le3 12237 efgt1 12263 resin4p 12284 recos4p 12285 sinbnd 12318 cosbnd 12319 sinbnd2 12320 cosbnd2 12321 ef01bndlem 12322 sin01bnd 12323 cos01bnd 12324 cos1bnd 12325 cos2bnd 12326 sinltxirr 12327 sin01gt0 12328 cos01gt0 12329 sin02gt0 12330 sincos1sgn 12331 cos12dec 12334 ene1 12351 eap1 12352 3dvds 12430 halfleoddlt 12460 flodddiv4 12502 isprm3 12695 sqnprm 12713 coprm 12721 phibndlem 12793 pythagtriplem3 12845 fldivp1 12926 pockthi 12936 exmidunben 13052 basendxnmulrndx 13222 starvndxnbasendx 13230 scandxnbasendx 13242 vscandxnbasendx 13247 ipndxnbasendx 13260 basendxnocndx 13301 setsmsbasg 15209 tgioo 15284 dveflem 15456 reeff1olem 15501 reeff1o 15503 cosz12 15510 sinhalfpilem 15521 tangtx 15568 sincos4thpi 15570 pigt3 15574 coskpi 15578 cos0pilt1 15582 ioocosf1o 15584 loge 15597 logrpap0b 15606 logdivlti 15611 2logb9irrALT 15704 sqrt2cxp2logb9e3 15705 perfectlem2 15730 lgsdir 15770 lgsne0 15773 lgsabs1 15774 lgsdinn0 15783 gausslemma2dlem0i 15792 lgseisen 15809 2lgslem3 15836 usgrexmpldifpr 16106 ex-fl 16343 cvgcmp2nlemabs 16662 iooref1o 16664 trilpolemclim 16666 trilpolemcl 16667 trilpolemisumle 16668 trilpolemeq1 16670 trilpolemlt1 16671 apdiff 16678 nconstwlpolemgt0 16695 |
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