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Theorem rlimcn2 15345
Description: Image of a limit under a continuous map, two-arg version. (Contributed by Mario Carneiro, 17-Sep-2014.)
Hypotheses
Ref Expression
rlimcn2.1a ((𝜑𝑧𝐴) → 𝐵𝑋)
rlimcn2.1b ((𝜑𝑧𝐴) → 𝐶𝑌)
rlimcn2.2a (𝜑𝑅𝑋)
rlimcn2.2b (𝜑𝑆𝑌)
rlimcn2.3a (𝜑 → (𝑧𝐴𝐵) ⇝𝑟 𝑅)
rlimcn2.3b (𝜑 → (𝑧𝐴𝐶) ⇝𝑟 𝑆)
rlimcn2.4 (𝜑𝐹:(𝑋 × 𝑌)⟶ℂ)
rlimcn2.5 ((𝜑𝑥 ∈ ℝ+) → ∃𝑟 ∈ ℝ+𝑠 ∈ ℝ+𝑢𝑋𝑣𝑌 (((abs‘(𝑢𝑅)) < 𝑟 ∧ (abs‘(𝑣𝑆)) < 𝑠) → (abs‘((𝑢𝐹𝑣) − (𝑅𝐹𝑆))) < 𝑥))
Assertion
Ref Expression
rlimcn2 (𝜑 → (𝑧𝐴 ↦ (𝐵𝐹𝐶)) ⇝𝑟 (𝑅𝐹𝑆))
Distinct variable groups:   𝐴,𝑟,𝑠,𝑥,𝑧   𝐹,𝑟,𝑠,𝑢,𝑣,𝑥,𝑧   𝑅,𝑟,𝑠,𝑢,𝑣,𝑥,𝑧   𝐵,𝑟,𝑠,𝑢,𝑣,𝑥   𝜑,𝑟,𝑠,𝑥,𝑧   𝑆,𝑟,𝑠,𝑢,𝑣,𝑥,𝑧   𝐶,𝑟,𝑠,𝑣,𝑥   𝑢,𝑋,𝑧   𝑢,𝑌,𝑣,𝑧
Allowed substitution hints:   𝜑(𝑣,𝑢)   𝐴(𝑣,𝑢)   𝐵(𝑧)   𝐶(𝑧,𝑢)   𝑋(𝑥,𝑣,𝑠,𝑟)   𝑌(𝑥,𝑠,𝑟)

Proof of Theorem rlimcn2
StepHypRef Expression
1 rlimcn2.1a . 2 ((𝜑𝑧𝐴) → 𝐵𝑋)
2 rlimcn2.1b . 2 ((𝜑𝑧𝐴) → 𝐶𝑌)
3 rlimcn2.4 . . . 4 (𝜑𝐹:(𝑋 × 𝑌)⟶ℂ)
43adantr 482 . . 3 ((𝜑𝑧𝐴) → 𝐹:(𝑋 × 𝑌)⟶ℂ)
54, 1, 2fovcdmd 7476 . 2 ((𝜑𝑧𝐴) → (𝐵𝐹𝐶) ∈ ℂ)
6 rlimcn2.2a . . 3 (𝜑𝑅𝑋)
7 rlimcn2.2b . . 3 (𝜑𝑆𝑌)
83, 6, 7fovcdmd 7476 . 2 (𝜑 → (𝑅𝐹𝑆) ∈ ℂ)
9 rlimcn2.3a . 2 (𝜑 → (𝑧𝐴𝐵) ⇝𝑟 𝑅)
10 rlimcn2.3b . 2 (𝜑 → (𝑧𝐴𝐶) ⇝𝑟 𝑆)
11 rlimcn2.5 . 2 ((𝜑𝑥 ∈ ℝ+) → ∃𝑟 ∈ ℝ+𝑠 ∈ ℝ+𝑢𝑋𝑣𝑌 (((abs‘(𝑢𝑅)) < 𝑟 ∧ (abs‘(𝑣𝑆)) < 𝑠) → (abs‘((𝑢𝐹𝑣) − (𝑅𝐹𝑆))) < 𝑥))
121, 2, 5, 8, 9, 10, 11rlimcn3 15344 1 (𝜑 → (𝑧𝐴 ↦ (𝐵𝐹𝐶)) ⇝𝑟 (𝑅𝐹𝑆))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 397  wcel 2104  wral 3062  wrex 3071   class class class wbr 5081  cmpt 5164   × cxp 5598  wf 6454  cfv 6458  (class class class)co 7307  cc 10915   < clt 11055  cmin 11251  +crp 12776  abscabs 14990  𝑟 crli 15239
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1911  ax-6 1969  ax-7 2009  ax-8 2106  ax-9 2114  ax-10 2135  ax-11 2152  ax-12 2169  ax-ext 2707  ax-sep 5232  ax-nul 5239  ax-pow 5297  ax-pr 5361  ax-un 7620  ax-cnex 10973  ax-resscn 10974  ax-pre-lttri 10991  ax-pre-lttrn 10992
This theorem depends on definitions:  df-bi 206  df-an 398  df-or 846  df-3or 1088  df-3an 1089  df-tru 1542  df-fal 1552  df-ex 1780  df-nf 1784  df-sb 2066  df-mo 2538  df-eu 2567  df-clab 2714  df-cleq 2728  df-clel 2814  df-nfc 2887  df-ne 2942  df-nel 3048  df-ral 3063  df-rex 3072  df-rab 3287  df-v 3439  df-sbc 3722  df-csb 3838  df-dif 3895  df-un 3897  df-in 3899  df-ss 3909  df-nul 4263  df-if 4466  df-pw 4541  df-sn 4566  df-pr 4568  df-op 4572  df-uni 4845  df-br 5082  df-opab 5144  df-mpt 5165  df-id 5500  df-po 5514  df-so 5515  df-xp 5606  df-rel 5607  df-cnv 5608  df-co 5609  df-dm 5610  df-rn 5611  df-res 5612  df-ima 5613  df-iota 6410  df-fun 6460  df-fn 6461  df-f 6462  df-f1 6463  df-fo 6464  df-f1o 6465  df-fv 6466  df-ov 7310  df-oprab 7311  df-mpo 7312  df-er 8529  df-pm 8649  df-en 8765  df-dom 8766  df-sdom 8767  df-pnf 11057  df-mnf 11058  df-xr 11059  df-ltxr 11060  df-le 11061  df-rlim 15243
This theorem is referenced by:  rlimaddOLD  15398  rlimsub  15399  rlimmulOLD  15401
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