| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > xlesubadd | Unicode version | ||
| Description: Under certain conditions, the conclusion of lesubadd 8696 is true even in the extended reals. (Contributed by Mario Carneiro, 4-Sep-2015.) |
| Ref | Expression |
|---|---|
| xlesubadd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpl1 1027 |
. . . . . 6
| |
| 2 | simpl2 1028 |
. . . . . . 7
| |
| 3 | 2 | xnegcld 10174 |
. . . . . 6
|
| 4 | xaddcl 10179 |
. . . . . 6
| |
| 5 | 1, 3, 4 | syl2anc 411 |
. . . . 5
|
| 6 | 5 | adantr 276 |
. . . 4
|
| 7 | simpll3 1065 |
. . . 4
| |
| 8 | simpr 110 |
. . . 4
| |
| 9 | xleadd1 10194 |
. . . 4
| |
| 10 | 6, 7, 8, 9 | syl3anc 1274 |
. . 3
|
| 11 | xnpcan 10191 |
. . . . 5
| |
| 12 | 1, 11 | sylan 283 |
. . . 4
|
| 13 | 12 | breq1d 4112 |
. . 3
|
| 14 | 10, 13 | bitrd 188 |
. 2
|
| 15 | simpr3 1032 |
. . . . . . 7
| |
| 16 | oveq1 6048 |
. . . . . . . . 9
| |
| 17 | pnfaddmnf 10169 |
. . . . . . . . 9
| |
| 18 | 16, 17 | eqtrdi 2281 |
. . . . . . . 8
|
| 19 | 18 | breq1d 4112 |
. . . . . . 7
|
| 20 | 15, 19 | syl5ibrcom 157 |
. . . . . 6
|
| 21 | xaddmnf1 10167 |
. . . . . . . . 9
| |
| 22 | 21 | ex 115 |
. . . . . . . 8
|
| 23 | 1, 22 | syl 14 |
. . . . . . 7
|
| 24 | simpl3 1029 |
. . . . . . . . 9
| |
| 25 | mnfle 10111 |
. . . . . . . . 9
| |
| 26 | 24, 25 | syl 14 |
. . . . . . . 8
|
| 27 | breq1 4105 |
. . . . . . . 8
| |
| 28 | 26, 27 | syl5ibrcom 157 |
. . . . . . 7
|
| 29 | 23, 28 | syld 45 |
. . . . . 6
|
| 30 | xrpnfdc 10161 |
. . . . . . . 8
| |
| 31 | dcne 2423 |
. . . . . . . 8
| |
| 32 | 30, 31 | sylib 122 |
. . . . . . 7
|
| 33 | 1, 32 | syl 14 |
. . . . . 6
|
| 34 | 20, 29, 33 | mpjaod 726 |
. . . . 5
|
| 35 | pnfge 10108 |
. . . . . . 7
| |
| 36 | 1, 35 | syl 14 |
. . . . . 6
|
| 37 | ge0nemnf 10143 |
. . . . . . . 8
| |
| 38 | 24, 15, 37 | syl2anc 411 |
. . . . . . 7
|
| 39 | xaddpnf1 10165 |
. . . . . . 7
| |
| 40 | 24, 38, 39 | syl2anc 411 |
. . . . . 6
|
| 41 | 36, 40 | breqtrrd 4130 |
. . . . 5
|
| 42 | 34, 41 | 2thd 175 |
. . . 4
|
| 43 | xnegeq 10146 |
. . . . . . . 8
| |
| 44 | xnegpnf 10147 |
. . . . . . . 8
| |
| 45 | 43, 44 | eqtrdi 2281 |
. . . . . . 7
|
| 46 | 45 | oveq2d 6057 |
. . . . . 6
|
| 47 | 46 | breq1d 4112 |
. . . . 5
|
| 48 | oveq2 6049 |
. . . . . 6
| |
| 49 | 48 | breq2d 4114 |
. . . . 5
|
| 50 | 47, 49 | bibi12d 235 |
. . . 4
|
| 51 | 42, 50 | syl5ibrcom 157 |
. . 3
|
| 52 | 51 | imp 124 |
. 2
|
| 53 | simpr2 1031 |
. . . 4
| |
| 54 | 2, 53 | jca 306 |
. . 3
|
| 55 | xrnemnf 10096 |
. . 3
| |
| 56 | 54, 55 | sylib 122 |
. 2
|
| 57 | 14, 52, 56 | mpjaodan 806 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| 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 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2205 ax-14 2206 ax-ext 2214 ax-sep 4221 ax-pow 4279 ax-pr 4314 ax-un 4545 ax-setind 4650 ax-cnex 8206 ax-resscn 8207 ax-1cn 8208 ax-1re 8209 ax-icn 8210 ax-addcl 8211 ax-addrcl 8212 ax-mulcl 8213 ax-addcom 8215 ax-addass 8217 ax-distr 8219 ax-i2m1 8220 ax-0id 8223 ax-rnegex 8224 ax-cnre 8226 ax-pre-ltirr 8227 ax-pre-ltwlin 8228 ax-pre-lttrn 8229 ax-pre-apti 8230 ax-pre-ltadd 8231 |
| This theorem depends on definitions: df-bi 117 df-dc 843 df-3or 1006 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-nel 2508 df-ral 2525 df-rex 2526 df-reu 2527 df-rab 2529 df-v 2814 df-sbc 3042 df-csb 3138 df-dif 3212 df-un 3214 df-in 3216 df-ss 3223 df-if 3617 df-pw 3667 df-sn 3688 df-pr 3689 df-op 3691 df-uni 3908 df-iun 3986 df-br 4103 df-opab 4165 df-mpt 4166 df-id 4405 df-po 4408 df-iso 4409 df-xp 4746 df-rel 4747 df-cnv 4748 df-co 4749 df-dm 4750 df-rn 4751 df-res 4752 df-ima 4753 df-iota 5303 df-fun 5345 df-fn 5346 df-f 5347 df-fv 5351 df-riota 5994 df-ov 6044 df-oprab 6045 df-mpo 6046 df-1st 6325 df-2nd 6326 df-pnf 8298 df-mnf 8299 df-xr 8300 df-ltxr 8301 df-le 8302 df-sub 8434 df-neg 8435 df-xneg 10091 df-xadd 10092 |
| This theorem is referenced by: xmetrtri 15211 |
| Copyright terms: Public domain | W3C validator |