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Theorem rlimres2 14920
Description: The restriction of a function converges if the original converges. (Contributed by Mario Carneiro, 16-Sep-2014.)
Hypotheses
Ref Expression
rlimres2.1 (𝜑𝐴𝐵)
rlimres2.2 (𝜑 → (𝑥𝐵𝐶) ⇝𝑟 𝐷)
Assertion
Ref Expression
rlimres2 (𝜑 → (𝑥𝐴𝐶) ⇝𝑟 𝐷)
Distinct variable groups:   𝑥,𝐴   𝑥,𝐵
Allowed substitution hints:   𝜑(𝑥)   𝐶(𝑥)   𝐷(𝑥)

Proof of Theorem rlimres2
StepHypRef Expression
1 rlimres2.1 . . 3 (𝜑𝐴𝐵)
21resmptd 5910 . 2 (𝜑 → ((𝑥𝐵𝐶) ↾ 𝐴) = (𝑥𝐴𝐶))
3 rlimres2.2 . . 3 (𝜑 → (𝑥𝐵𝐶) ⇝𝑟 𝐷)
4 rlimres 14917 . . 3 ((𝑥𝐵𝐶) ⇝𝑟 𝐷 → ((𝑥𝐵𝐶) ↾ 𝐴) ⇝𝑟 𝐷)
53, 4syl 17 . 2 (𝜑 → ((𝑥𝐵𝐶) ↾ 𝐴) ⇝𝑟 𝐷)
62, 5eqbrtrrd 5092 1 (𝜑 → (𝑥𝐴𝐶) ⇝𝑟 𝐷)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wss 3938   class class class wbr 5068  cmpt 5148  cres 5559  𝑟 crli 14844
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-pow 5268  ax-pr 5332  ax-un 7463  ax-cnex 10595  ax-resscn 10596
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-ne 3019  df-ral 3145  df-rex 3146  df-rab 3149  df-v 3498  df-sbc 3775  df-dif 3941  df-un 3943  df-in 3945  df-ss 3954  df-nul 4294  df-if 4470  df-pw 4543  df-sn 4570  df-pr 4572  df-op 4576  df-uni 4841  df-br 5069  df-opab 5131  df-mpt 5149  df-id 5462  df-xp 5563  df-rel 5564  df-cnv 5565  df-co 5566  df-dm 5567  df-rn 5568  df-res 5569  df-iota 6316  df-fun 6359  df-fn 6360  df-f 6361  df-fv 6365  df-ov 7161  df-oprab 7162  df-mpo 7163  df-pm 8411  df-rlim 14848
This theorem is referenced by:  divcnv  15210  dvfsumrlimge0  24629  dvfsumrlim2  24631  dfef2  25550  cxp2lim  25556  chtppilimlem2  26052  chpchtlim  26057  pnt2  26191
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