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Mirrors > Home > ILE Home > Th. List > addgt0sr | Unicode version |
Description: The sum of two positive signed reals is positive. (Contributed by NM, 14-May-1996.) |
Ref | Expression |
---|---|
addgt0sr |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpr 109 | . . . 4 | |
2 | ltrelsr 7539 | . . . . . . 7 | |
3 | 2 | brel 4586 | . . . . . 6 |
4 | 3 | simprd 113 | . . . . 5 |
5 | 2 | brel 4586 | . . . . . 6 |
6 | 5 | simprd 113 | . . . . 5 |
7 | 0r 7551 | . . . . . 6 | |
8 | ltasrg 7571 | . . . . . 6 | |
9 | 7, 8 | mp3an1 1302 | . . . . 5 |
10 | 4, 6, 9 | syl2anr 288 | . . . 4 |
11 | 1, 10 | mpbid 146 | . . 3 |
12 | 6 | adantr 274 | . . . 4 |
13 | 0idsr 7568 | . . . . 5 | |
14 | 13 | breq1d 3934 | . . . 4 |
15 | 12, 14 | syl 14 | . . 3 |
16 | 11, 15 | mpbid 146 | . 2 |
17 | ltsosr 7565 | . . 3 | |
18 | 17, 2 | sotri 4929 | . 2 |
19 | 16, 18 | syldan 280 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wcel 1480 class class class wbr 3924 (class class class)co 5767 cnr 7098 c0r 7099 cplr 7102 cltr 7104 |
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 2119 ax-coll 4038 ax-sep 4041 ax-nul 4049 ax-pow 4093 ax-pr 4126 ax-un 4350 ax-setind 4447 ax-iinf 4497 |
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 2000 df-mo 2001 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-ne 2307 df-ral 2419 df-rex 2420 df-reu 2421 df-rab 2423 df-v 2683 df-sbc 2905 df-csb 2999 df-dif 3068 df-un 3070 df-in 3072 df-ss 3079 df-nul 3359 df-pw 3507 df-sn 3528 df-pr 3529 df-op 3531 df-uni 3732 df-int 3767 df-iun 3810 df-br 3925 df-opab 3985 df-mpt 3986 df-tr 4022 df-eprel 4206 df-id 4210 df-po 4213 df-iso 4214 df-iord 4283 df-on 4285 df-suc 4288 df-iom 4500 df-xp 4540 df-rel 4541 df-cnv 4542 df-co 4543 df-dm 4544 df-rn 4545 df-res 4546 df-ima 4547 df-iota 5083 df-fun 5120 df-fn 5121 df-f 5122 df-f1 5123 df-fo 5124 df-f1o 5125 df-fv 5126 df-ov 5770 df-oprab 5771 df-mpo 5772 df-1st 6031 df-2nd 6032 df-recs 6195 df-irdg 6260 df-1o 6306 df-2o 6307 df-oadd 6310 df-omul 6311 df-er 6422 df-ec 6424 df-qs 6428 df-ni 7105 df-pli 7106 df-mi 7107 df-lti 7108 df-plpq 7145 df-mpq 7146 df-enq 7148 df-nqqs 7149 df-plqqs 7150 df-mqqs 7151 df-1nqqs 7152 df-rq 7153 df-ltnqqs 7154 df-enq0 7225 df-nq0 7226 df-0nq0 7227 df-plq0 7228 df-mq0 7229 df-inp 7267 df-i1p 7268 df-iplp 7269 df-iltp 7271 df-enr 7527 df-nr 7528 df-plr 7529 df-ltr 7531 df-0r 7532 |
This theorem is referenced by: (None) |
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