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Mathbox for Glauco Siliprandi |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > limsupresuz2 | Structured version Visualization version GIF version |
Description: If the domain of a function is a subset of the integers, the superior limit doesn't change when the function is restricted to an upper set of integers. (Contributed by Glauco Siliprandi, 23-Oct-2021.) |
Ref | Expression |
---|---|
limsupresuz2.1 | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
limsupresuz2.2 | ⊢ 𝑍 = (ℤ≥‘𝑀) |
limsupresuz2.3 | ⊢ (𝜑 → 𝐹 ∈ 𝑉) |
limsupresuz2.4 | ⊢ (𝜑 → dom 𝐹 ⊆ ℤ) |
Ref | Expression |
---|---|
limsupresuz2 | ⊢ (𝜑 → (lim sup‘(𝐹 ↾ 𝑍)) = (lim sup‘𝐹)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | limsupresuz2.1 | . 2 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
2 | limsupresuz2.2 | . 2 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
3 | limsupresuz2.3 | . 2 ⊢ (𝜑 → 𝐹 ∈ 𝑉) | |
4 | dmresss 6015 | . . . 4 ⊢ dom (𝐹 ↾ ℝ) ⊆ dom 𝐹 | |
5 | 4 | a1i 11 | . . 3 ⊢ (𝜑 → dom (𝐹 ↾ ℝ) ⊆ dom 𝐹) |
6 | limsupresuz2.4 | . . 3 ⊢ (𝜑 → dom 𝐹 ⊆ ℤ) | |
7 | 5, 6 | sstrd 3988 | . 2 ⊢ (𝜑 → dom (𝐹 ↾ ℝ) ⊆ ℤ) |
8 | 1, 2, 3, 7 | limsupresuz 45154 | 1 ⊢ (𝜑 → (lim sup‘(𝐹 ↾ 𝑍)) = (lim sup‘𝐹)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1533 ∈ wcel 2098 ⊆ wss 3945 dom cdm 5677 ↾ cres 5679 ‘cfv 6547 ℝcr 11137 ℤcz 12588 ℤ≥cuz 12852 lim supclsp 15446 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2696 ax-sep 5299 ax-nul 5306 ax-pow 5364 ax-pr 5428 ax-un 7739 ax-cnex 11194 ax-resscn 11195 ax-1cn 11196 ax-icn 11197 ax-addcl 11198 ax-addrcl 11199 ax-mulcl 11200 ax-mulrcl 11201 ax-mulcom 11202 ax-addass 11203 ax-mulass 11204 ax-distr 11205 ax-i2m1 11206 ax-1ne0 11207 ax-1rid 11208 ax-rnegex 11209 ax-rrecex 11210 ax-cnre 11211 ax-pre-lttri 11212 ax-pre-lttrn 11213 ax-pre-ltadd 11214 ax-pre-mulgt0 11215 ax-pre-sup 11216 |
This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2528 df-eu 2557 df-clab 2703 df-cleq 2717 df-clel 2802 df-nfc 2877 df-ne 2931 df-nel 3037 df-ral 3052 df-rex 3061 df-rmo 3364 df-reu 3365 df-rab 3420 df-v 3465 df-sbc 3775 df-csb 3891 df-dif 3948 df-un 3950 df-in 3952 df-ss 3962 df-pss 3965 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4909 df-iun 4998 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5575 df-eprel 5581 df-po 5589 df-so 5590 df-fr 5632 df-we 5634 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-pred 6305 df-ord 6372 df-on 6373 df-lim 6374 df-suc 6375 df-iota 6499 df-fun 6549 df-fn 6550 df-f 6551 df-f1 6552 df-fo 6553 df-f1o 6554 df-fv 6555 df-riota 7373 df-ov 7420 df-oprab 7421 df-mpo 7422 df-om 7870 df-1st 7992 df-2nd 7993 df-frecs 8285 df-wrecs 8316 df-recs 8390 df-rdg 8429 df-er 8723 df-en 8963 df-dom 8964 df-sdom 8965 df-sup 9465 df-inf 9466 df-pnf 11280 df-mnf 11281 df-xr 11282 df-ltxr 11283 df-le 11284 df-sub 11476 df-neg 11477 df-div 11902 df-nn 12243 df-n0 12503 df-z 12589 df-uz 12853 df-q 12963 df-ico 13362 df-limsup 15447 |
This theorem is referenced by: limsupequzmpt2 45169 limsupequzlem 45173 xlimliminflimsup 45313 |
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