| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > xrltnle | Structured version Visualization version GIF version | ||
| Description: "Less than" expressed in terms of "less than or equal to", for extended reals. (Contributed by NM, 6-Feb-2007.) |
| Ref | Expression |
|---|---|
| xrltnle | ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴 < 𝐵 ↔ ¬ 𝐵 ≤ 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xrlenlt 11262 | . . 3 ⊢ ((𝐵 ∈ ℝ* ∧ 𝐴 ∈ ℝ*) → (𝐵 ≤ 𝐴 ↔ ¬ 𝐴 < 𝐵)) | |
| 2 | 1 | con2bid 357 | . 2 ⊢ ((𝐵 ∈ ℝ* ∧ 𝐴 ∈ ℝ*) → (𝐴 < 𝐵 ↔ ¬ 𝐵 ≤ 𝐴)) |
| 3 | 2 | ancoms 463 | 1 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴 < 𝐵 ↔ ¬ 𝐵 ≤ 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 400 ∈ wcel 2145 class class class wbr 5104 ℝ*cxr 11230 < clt 11231 ≤ cle 11232 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-ext 2737 ax-sep 5250 ax-pr 5394 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-sb 2094 df-clab 2744 df-cleq 2757 df-clel 2840 df-ral 3080 df-rex 3090 df-rab 3418 df-v 3459 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-nul 4289 df-if 4484 df-sn 4586 df-pr 4588 df-op 4592 df-br 5105 df-opab 5167 df-xp 5657 df-cnv 5659 df-le 11237 |
| This theorem is referenced by: xrltnled 11265 xrletri 13166 qextltlem 13216 xralrple 13219 xltadd1 13270 xsubge0 13275 xposdif 13276 xltmul1 13306 ioo0 13385 ico0 13406 ioc0 13407 snunioo 13493 snunioc 13495 difreicc 13499 hashbnd 14360 limsuplt 15518 pcadd 16937 pcadd2 16938 ramubcl 17066 ramlb 17067 leordtvallem1 23324 leordtvallem2 23325 leordtval2 23326 leordtval 23327 lecldbas 23333 blcld 24619 stdbdbl 24631 tmsxpsval2 24653 iocmnfcld 24882 xrsxmet 24924 metdsge 24964 bndth 25074 ovolgelb 25596 ovolunnul 25616 ioombl 25681 volsup2 25721 mbfmax 25765 ismbf3d 25770 itg2seq 25858 itg2monolem2 25867 itg2monolem3 25868 lhop2 26131 mdegleb 26178 deg1ge 26212 deg1add 26217 ig1pdvds 26294 plypf1 26326 radcnvlt1 26535 upgrfi 29346 xrdifh 33033 xrge00 33242 gsumesum 34361 itg2gt0cn 38181 asindmre 38209 dvasin 38210 aks6d1c6lem3 42796 aks6d1c7lem2 42805 iocioodisjd 42936 radcnvrat 44883 supxrgelem 45912 infrpge 45926 xrlexaddrp 45927 xrpnf 46058 gtnelioc 46066 ltnelicc 46072 gtnelicc 46075 snunioo1 46087 eliccnelico 46104 xrgtnelicc 46113 lptioo2 46206 stoweidlem34 46607 fourierdlem20 46700 fouriersw 46804 nltle2tri 47906 iccelpart 48038 |
| Copyright terms: Public domain | W3C validator |