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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 10719 | . . 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 5066 ℝcr 10536 < clt 10675 ≤ cle 10676 |
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 2793 ax-sep 5203 ax-nul 5210 ax-pr 5330 |
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 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-sn 4568 df-pr 4570 df-op 4574 df-br 5067 df-opab 5129 df-xp 5561 df-cnv 5563 df-xr 10679 df-le 10681 |
This theorem is referenced by: letric 10740 ltnled 10787 leaddsub 11116 mulge0b 11510 nnnle0 11671 nn0n0n1ge2b 11964 znnnlt1 12010 uzwo 12312 qsqueeze 12595 difreicc 12871 fzp1disj 12967 fzneuz 12989 fznuz 12990 uznfz 12991 difelfznle 13022 nelfzo 13044 ssfzoulel 13132 elfzonelfzo 13140 modfzo0difsn 13312 ssnn0fi 13354 discr1 13601 bcval5 13679 swrdnd 14016 swrdnnn0nd 14018 swrdnd0 14019 swrdsbslen 14026 swrdspsleq 14027 pfxnd0 14050 pfxccat3 14096 swrdccat 14097 pfxccat3a 14100 repswswrd 14146 cnpart 14599 absmax 14689 rlimrege0 14936 rpnnen2lem12 15578 alzdvds 15670 algcvgblem 15921 prmndvdsfaclt 16067 pcprendvds 16177 pcdvdsb 16205 pcmpt 16228 prmunb 16250 prmreclem2 16253 prmgaplem5 16391 prmgaplem6 16392 prmlem1 16441 prmlem2 16453 lt6abl 19015 metdseq0 23462 xrhmeo 23550 ovolicc2lem3 24120 itg2seq 24343 dvne0 24608 coeeulem 24814 radcnvlt1 25006 argimgt0 25195 cxple2 25280 ressatans 25512 eldmgm 25599 basellem2 25659 issqf 25713 bpos1 25859 bposlem3 25862 bposlem6 25865 2sqreulem1 26022 2sqreunnlem1 26025 pntpbnd2 26163 ostth2lem4 26212 crctcshwlkn0 27599 crctcsh 27602 eucrctshift 28022 ltflcei 34895 poimirlem4 34911 poimirlem13 34920 poimirlem14 34921 poimirlem15 34922 poimirlem31 34938 mblfinlem1 34944 mbfposadd 34954 itgaddnclem2 34966 ftc1anclem1 34982 ftc1anclem5 34986 dvasin 34993 icccncfext 42190 stoweidlem14 42319 stoweidlem34 42339 ltnltne 43519 nnsum4primeseven 43985 nnsum4primesevenALTV 43986 ply1mulgsumlem2 44461 |
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