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Mirrors > Home > MPE Home > Th. List > ltnle | Structured version Visualization version GIF version |
Description: 'Less than' expressed in terms of 'less than or equal to'. (Contributed by NM, 11-Jul-2005.) |
Ref | Expression |
---|---|
ltnle | ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 < 𝐵 ↔ ¬ 𝐵 ≤ 𝐴)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lenlt 10721 | . . 3 ⊢ ((𝐵 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (𝐵 ≤ 𝐴 ↔ ¬ 𝐴 < 𝐵)) | |
2 | 1 | ancoms 461 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐵 ≤ 𝐴 ↔ ¬ 𝐴 < 𝐵)) |
3 | 2 | con2bid 357 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 < 𝐵 ↔ ¬ 𝐵 ≤ 𝐴)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 208 ∧ wa 398 ∈ wcel 2114 class class class wbr 5068 ℝcr 10538 < clt 10677 ≤ cle 10678 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pr 5332 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-sn 4570 df-pr 4572 df-op 4576 df-br 5069 df-opab 5131 df-xp 5563 df-cnv 5565 df-xr 10681 df-le 10683 |
This theorem is referenced by: letric 10742 ltnled 10789 leaddsub 11118 mulge0b 11512 nnnle0 11673 nn0n0n1ge2b 11966 znnnlt1 12012 uzwo 12314 qsqueeze 12597 difreicc 12873 fzp1disj 12969 fzneuz 12991 fznuz 12992 uznfz 12993 difelfznle 13024 nelfzo 13046 ssfzoulel 13134 elfzonelfzo 13142 modfzo0difsn 13314 ssnn0fi 13356 discr1 13603 bcval5 13681 swrdnd 14018 swrdnnn0nd 14020 swrdnd0 14021 swrdsbslen 14028 swrdspsleq 14029 pfxnd0 14052 pfxccat3 14098 swrdccat 14099 pfxccat3a 14102 repswswrd 14148 cnpart 14601 absmax 14691 rlimrege0 14938 rpnnen2lem12 15580 alzdvds 15672 algcvgblem 15923 prmndvdsfaclt 16069 pcprendvds 16179 pcdvdsb 16207 pcmpt 16230 prmunb 16252 prmreclem2 16255 prmgaplem5 16393 prmgaplem6 16394 prmlem1 16443 prmlem2 16455 lt6abl 19017 metdseq0 23464 xrhmeo 23552 ovolicc2lem3 24122 itg2seq 24345 dvne0 24610 coeeulem 24816 radcnvlt1 25008 argimgt0 25197 cxple2 25282 ressatans 25514 eldmgm 25601 basellem2 25661 issqf 25715 bpos1 25861 bposlem3 25864 bposlem6 25867 2sqreulem1 26024 2sqreunnlem1 26027 pntpbnd2 26165 ostth2lem4 26214 crctcshwlkn0 27601 crctcsh 27604 eucrctshift 28024 ltflcei 34882 poimirlem4 34898 poimirlem13 34907 poimirlem14 34908 poimirlem15 34909 poimirlem31 34925 mblfinlem1 34931 mbfposadd 34941 itgaddnclem2 34953 ftc1anclem1 34969 ftc1anclem5 34973 dvasin 34980 icccncfext 42177 stoweidlem14 42306 stoweidlem34 42326 ltnltne 43506 nnsum4primeseven 43972 nnsum4primesevenALTV 43973 ply1mulgsumlem2 44448 |
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