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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 10116 | . . 3 ⊢ ((𝐵 ∈ ℝ ∧ 𝐴 ∈ ℝ) → (𝐵 ≤ 𝐴 ↔ ¬ 𝐴 < 𝐵)) | |
2 | 1 | ancoms 469 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐵 ≤ 𝐴 ↔ ¬ 𝐴 < 𝐵)) |
3 | 2 | con2bid 344 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 < 𝐵 ↔ ¬ 𝐵 ≤ 𝐴)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 196 ∧ wa 384 ∈ wcel 1990 class class class wbr 4653 ℝcr 9935 < clt 10074 ≤ cle 10075 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-br 4654 df-opab 4713 df-xp 5120 df-cnv 5122 df-xr 10078 df-le 10080 |
This theorem is referenced by: letric 10137 ltnled 10184 leaddsub 10504 mulge0b 10893 nnnle0 11051 nn0n0n1ge2b 11359 znnnlt1 11404 uzwo 11751 qsqueeze 12032 difreicc 12304 fzp1disj 12399 fzneuz 12421 fznuz 12422 uznfz 12423 difelfznle 12453 nelfzo 12475 ssfzoulel 12562 elfzonelfzo 12570 modfzo0difsn 12742 ssnn0fi 12784 discr1 13000 facdiv 13074 bcval5 13105 ccatsymb 13366 swrdnd 13432 swrdsbslen 13448 swrdspsleq 13449 swrdccat3 13492 repswswrd 13531 cnpart 13980 absmax 14069 rlimrege0 14310 znnenlem 14940 rpnnen2lem12 14954 alzdvds 15042 algcvgblem 15290 prmndvdsfaclt 15435 pcprendvds 15545 pcdvdsb 15573 pcmpt 15596 prmunb 15618 prmreclem2 15621 prmgaplem5 15759 prmgaplem6 15760 prmlem1 15814 prmlem2 15827 lt6abl 18296 metdseq0 22657 xrhmeo 22745 ovolicc2lem3 23287 itg2seq 23509 dvne0 23774 coeeulem 23980 radcnvlt1 24172 argimgt0 24358 cxple2 24443 ressatans 24661 eldmgm 24748 basellem2 24808 issqf 24862 bpos1 25008 bposlem3 25011 bposlem6 25014 pntpbnd2 25276 ostth2lem4 25325 crctcshwlkn0 26713 crctcsh 26716 eucrctshift 27103 ltflcei 33397 poimirlem4 33413 poimirlem13 33422 poimirlem14 33423 poimirlem15 33424 poimirlem31 33440 mblfinlem1 33446 mbfposadd 33457 itgaddnclem2 33469 ftc1anclem1 33485 ftc1anclem5 33489 dvasin 33496 icccncfext 40100 stoweidlem14 40231 stoweidlem34 40251 ltnltne 41313 pfxccat3 41426 pfxccat3a 41429 nnsum4primeseven 41688 nnsum4primesevenALTV 41689 ply1mulgsumlem2 42175 |
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