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Mirrors > Home > ILE Home > Th. List > xnegid | Unicode version |
Description: Extended real version of negid 8136. (Contributed by Mario Carneiro, 20-Aug-2015.) |
Ref | Expression |
---|---|
xnegid |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elxr 9703 | . 2 | |
2 | rexneg 9757 | . . . . 5 | |
3 | 2 | oveq2d 5852 | . . . 4 |
4 | renegcl 8150 | . . . . 5 | |
5 | rexadd 9779 | . . . . 5 | |
6 | 4, 5 | mpdan 418 | . . . 4 |
7 | recn 7877 | . . . . 5 | |
8 | 7 | negidd 8190 | . . . 4 |
9 | 3, 6, 8 | 3eqtrd 2201 | . . 3 |
10 | id 19 | . . . . 5 | |
11 | xnegeq 9754 | . . . . . 6 | |
12 | xnegpnf 9755 | . . . . . 6 | |
13 | 11, 12 | eqtrdi 2213 | . . . . 5 |
14 | 10, 13 | oveq12d 5854 | . . . 4 |
15 | pnfaddmnf 9777 | . . . 4 | |
16 | 14, 15 | eqtrdi 2213 | . . 3 |
17 | id 19 | . . . . 5 | |
18 | xnegeq 9754 | . . . . . 6 | |
19 | xnegmnf 9756 | . . . . . 6 | |
20 | 18, 19 | eqtrdi 2213 | . . . . 5 |
21 | 17, 20 | oveq12d 5854 | . . . 4 |
22 | mnfaddpnf 9778 | . . . 4 | |
23 | 21, 22 | eqtrdi 2213 | . . 3 |
24 | 9, 16, 23 | 3jaoi 1292 | . 2 |
25 | 1, 24 | sylbi 120 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 w3o 966 wceq 1342 wcel 2135 (class class class)co 5836 cr 7743 cc0 7744 caddc 7747 cpnf 7921 cmnf 7922 cxr 7923 cneg 8061 cxne 9696 cxad 9697 |
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 604 ax-in2 605 ax-io 699 ax-5 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-13 2137 ax-14 2138 ax-ext 2146 ax-sep 4094 ax-pow 4147 ax-pr 4181 ax-un 4405 ax-setind 4508 ax-cnex 7835 ax-resscn 7836 ax-1cn 7837 ax-1re 7838 ax-icn 7839 ax-addcl 7840 ax-addrcl 7841 ax-mulcl 7842 ax-addcom 7844 ax-addass 7846 ax-distr 7848 ax-i2m1 7849 ax-0id 7852 ax-rnegex 7853 ax-cnre 7855 |
This theorem depends on definitions: df-bi 116 df-dc 825 df-3or 968 df-3an 969 df-tru 1345 df-fal 1348 df-nf 1448 df-sb 1750 df-eu 2016 df-mo 2017 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-ne 2335 df-nel 2430 df-ral 2447 df-rex 2448 df-reu 2449 df-rab 2451 df-v 2723 df-sbc 2947 df-dif 3113 df-un 3115 df-in 3117 df-ss 3124 df-if 3516 df-pw 3555 df-sn 3576 df-pr 3577 df-op 3579 df-uni 3784 df-br 3977 df-opab 4038 df-id 4265 df-xp 4604 df-rel 4605 df-cnv 4606 df-co 4607 df-dm 4608 df-iota 5147 df-fun 5184 df-fv 5190 df-riota 5792 df-ov 5839 df-oprab 5840 df-mpo 5841 df-pnf 7926 df-mnf 7927 df-xr 7928 df-sub 8062 df-neg 8063 df-xneg 9699 df-xadd 9700 |
This theorem is referenced by: (None) |
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