Mathbox for Glauco Siliprandi |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > xlimlimsupleliminf | Structured version Visualization version GIF version |
Description: A sequence of extended reals converges if and only if its superior limit is smaller than or equal to its inferior limit. (Contributed by Glauco Siliprandi, 2-Dec-2023.) |
Ref | Expression |
---|---|
xlimlimsupleliminf.1 | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
xlimlimsupleliminf.2 | ⊢ 𝑍 = (ℤ≥‘𝑀) |
xlimlimsupleliminf.3 | ⊢ (𝜑 → 𝐹:𝑍⟶ℝ*) |
Ref | Expression |
---|---|
xlimlimsupleliminf | ⊢ (𝜑 → (𝐹 ∈ dom ~~>* ↔ (lim sup‘𝐹) ≤ (lim inf‘𝐹))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | xlimlimsupleliminf.1 | . . 3 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
2 | xlimlimsupleliminf.2 | . . 3 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
3 | xlimlimsupleliminf.3 | . . 3 ⊢ (𝜑 → 𝐹:𝑍⟶ℝ*) | |
4 | 1, 2, 3 | xlimliminflimsup 43438 | . 2 ⊢ (𝜑 → (𝐹 ∈ dom ~~>* ↔ (lim inf‘𝐹) = (lim sup‘𝐹))) |
5 | 1, 2, 3 | liminfgelimsupuz 43364 | . 2 ⊢ (𝜑 → ((lim sup‘𝐹) ≤ (lim inf‘𝐹) ↔ (lim inf‘𝐹) = (lim sup‘𝐹))) |
6 | 4, 5 | bitr4d 281 | 1 ⊢ (𝜑 → (𝐹 ∈ dom ~~>* ↔ (lim sup‘𝐹) ≤ (lim inf‘𝐹))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 = wceq 1537 ∈ wcel 2101 class class class wbr 5077 dom cdm 5591 ⟶wf 6443 ‘cfv 6447 ℝ*cxr 11036 ≤ cle 11038 ℤcz 12347 ℤ≥cuz 12610 lim supclsp 15207 lim infclsi 43327 ~~>*clsxlim 43394 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2103 ax-9 2111 ax-10 2132 ax-11 2149 ax-12 2166 ax-ext 2704 ax-rep 5212 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7608 ax-cnex 10955 ax-resscn 10956 ax-1cn 10957 ax-icn 10958 ax-addcl 10959 ax-addrcl 10960 ax-mulcl 10961 ax-mulrcl 10962 ax-mulcom 10963 ax-addass 10964 ax-mulass 10965 ax-distr 10966 ax-i2m1 10967 ax-1ne0 10968 ax-1rid 10969 ax-rnegex 10970 ax-rrecex 10971 ax-cnre 10972 ax-pre-lttri 10973 ax-pre-lttrn 10974 ax-pre-ltadd 10975 ax-pre-mulgt0 10976 ax-pre-sup 10977 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2063 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2884 df-ne 2939 df-nel 3045 df-ral 3060 df-rex 3069 df-rmo 3222 df-reu 3223 df-rab 3224 df-v 3436 df-sbc 3719 df-csb 3835 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3908 df-nul 4260 df-if 4463 df-pw 4538 df-sn 4565 df-pr 4567 df-tp 4569 df-op 4571 df-uni 4842 df-int 4883 df-iun 4929 df-br 5078 df-opab 5140 df-mpt 5161 df-tr 5195 df-id 5491 df-eprel 5497 df-po 5505 df-so 5506 df-fr 5546 df-we 5548 df-xp 5597 df-rel 5598 df-cnv 5599 df-co 5600 df-dm 5601 df-rn 5602 df-res 5603 df-ima 5604 df-pred 6206 df-ord 6273 df-on 6274 df-lim 6275 df-suc 6276 df-iota 6399 df-fun 6449 df-fn 6450 df-f 6451 df-f1 6452 df-fo 6453 df-f1o 6454 df-fv 6455 df-isom 6456 df-riota 7252 df-ov 7298 df-oprab 7299 df-mpo 7300 df-om 7733 df-1st 7851 df-2nd 7852 df-frecs 8117 df-wrecs 8148 df-recs 8222 df-rdg 8261 df-1o 8317 df-er 8518 df-map 8637 df-pm 8638 df-en 8754 df-dom 8755 df-sdom 8756 df-fin 8757 df-fi 9198 df-sup 9229 df-inf 9230 df-pnf 11039 df-mnf 11040 df-xr 11041 df-ltxr 11042 df-le 11043 df-sub 11235 df-neg 11236 df-div 11661 df-nn 12002 df-2 12064 df-3 12065 df-4 12066 df-5 12067 df-6 12068 df-7 12069 df-8 12070 df-9 12071 df-n0 12262 df-z 12348 df-dec 12466 df-uz 12611 df-q 12717 df-rp 12759 df-xneg 12876 df-xadd 12877 df-xmul 12878 df-ioo 13111 df-ioc 13112 df-ico 13113 df-icc 13114 df-fz 13268 df-fzo 13411 df-fl 13540 df-ceil 13541 df-seq 13750 df-exp 13811 df-cj 14838 df-re 14839 df-im 14840 df-sqrt 14974 df-abs 14975 df-limsup 15208 df-clim 15225 df-rlim 15226 df-struct 16876 df-slot 16911 df-ndx 16923 df-base 16941 df-plusg 17003 df-mulr 17004 df-starv 17005 df-tset 17009 df-ple 17010 df-ds 17012 df-unif 17013 df-rest 17161 df-topn 17162 df-topgen 17182 df-ordt 17240 df-ps 18312 df-tsr 18313 df-psmet 20617 df-xmet 20618 df-met 20619 df-bl 20620 df-mopn 20621 df-cnfld 20626 df-top 22071 df-topon 22088 df-topsp 22110 df-bases 22124 df-lm 22408 df-haus 22494 df-xms 23501 df-ms 23502 df-liminf 43328 df-xlim 43395 |
This theorem is referenced by: (None) |
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