Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > elreal | Unicode version |
Description: Membership in class of real numbers. (Contributed by NM, 31-Mar-1996.) |
Ref | Expression |
---|---|
elreal |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-r 7633 | . . 3 | |
2 | 1 | eleq2i 2206 | . 2 |
3 | elxp2 4557 | . . 3 | |
4 | 0r 7561 | . . . . . . 7 | |
5 | 4 | elexi 2698 | . . . . . 6 |
6 | opeq2 3706 | . . . . . . 7 | |
7 | 6 | eqeq2d 2151 | . . . . . 6 |
8 | 5, 7 | rexsn 3568 | . . . . 5 |
9 | eqcom 2141 | . . . . 5 | |
10 | 8, 9 | bitri 183 | . . . 4 |
11 | 10 | rexbii 2442 | . . 3 |
12 | 3, 11 | bitri 183 | . 2 |
13 | 2, 12 | bitri 183 | 1 |
Colors of variables: wff set class |
Syntax hints: wb 104 wceq 1331 wcel 1480 wrex 2417 csn 3527 cop 3530 cxp 4537 cnr 7108 c0r 7109 cr 7622 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-coll 4043 ax-sep 4046 ax-nul 4054 ax-pow 4098 ax-pr 4131 ax-un 4355 ax-setind 4452 ax-iinf 4502 |
This theorem depends on definitions: df-bi 116 df-dc 820 df-3or 963 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ne 2309 df-ral 2421 df-rex 2422 df-reu 2423 df-rab 2425 df-v 2688 df-sbc 2910 df-csb 3004 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-nul 3364 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-int 3772 df-iun 3815 df-br 3930 df-opab 3990 df-mpt 3991 df-tr 4027 df-eprel 4211 df-id 4215 df-po 4218 df-iso 4219 df-iord 4288 df-on 4290 df-suc 4293 df-iom 4505 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-rn 4550 df-res 4551 df-ima 4552 df-iota 5088 df-fun 5125 df-fn 5126 df-f 5127 df-f1 5128 df-fo 5129 df-f1o 5130 df-fv 5131 df-ov 5777 df-oprab 5778 df-mpo 5779 df-1st 6038 df-2nd 6039 df-recs 6202 df-irdg 6267 df-1o 6313 df-oadd 6317 df-omul 6318 df-er 6429 df-ec 6431 df-qs 6435 df-ni 7115 df-pli 7116 df-mi 7117 df-lti 7118 df-plpq 7155 df-mpq 7156 df-enq 7158 df-nqqs 7159 df-plqqs 7160 df-mqqs 7161 df-1nqqs 7162 df-rq 7163 df-ltnqqs 7164 df-inp 7277 df-i1p 7278 df-enr 7537 df-nr 7538 df-0r 7542 df-r 7633 |
This theorem is referenced by: elrealeu 7640 axaddrcl 7676 axmulrcl 7678 axprecex 7691 axpre-ltirr 7693 axpre-ltwlin 7694 axpre-lttrn 7695 axpre-apti 7696 axpre-ltadd 7697 axpre-mulgt0 7698 axpre-mulext 7699 axarch 7702 axcaucvglemres 7710 |
Copyright terms: Public domain | W3C validator |