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Theorem fmptd2f 46064
Description: Domain and codomain of the mapping operation; deduction form. (Contributed by Glauco Siliprandi, 23-Oct-2021.)
Hypotheses
Ref Expression
fmptd2f.1 𝑥𝜑
fmptd2f.2 ((𝜑𝑥𝐴) → 𝐵𝐶)
Assertion
Ref Expression
fmptd2f (𝜑 → (𝑥𝐴𝐵):𝐴𝐶)
Distinct variable groups:   𝑥,𝐴   𝑥,𝐶
Allowed substitution hints:   𝜑(𝑥)   𝐵(𝑥)

Proof of Theorem fmptd2f
StepHypRef Expression
1 fmptd2f.1 . 2 𝑥𝜑
2 fmptd2f.2 . 2 ((𝜑𝑥𝐴) → 𝐵𝐶)
3 eqid 2760 . 2 (𝑥𝐴𝐵) = (𝑥𝐴𝐵)
41, 2, 3fmptdf 7110 1 (𝜑 → (𝑥𝐴𝐵):𝐴𝐶)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wa 401  wnf 1816  wcel 2145  cmpt 5186  wf 6529
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2732  ax-sep 5251  ax-pr 5398
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2564  df-eu 2594  df-clab 2739  df-cleq 2752  df-clel 2835  df-nfc 2909  df-ral 3077  df-rex 3087  df-rab 3413  df-v 3452  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-sn 4585  df-pr 4587  df-op 4591  df-br 5104  df-opab 5168  df-mpt 5187  df-id 5550  df-xp 5661  df-rel 5662  df-cnv 5663  df-co 5664  df-dm 5665  df-rn 5666  df-res 5667  df-ima 5668  df-fun 6535  df-fn 6536  df-f 6537
This theorem is used by:  climinf2mpt  46542  climinfmpt  46543  limsupvaluzmpt  46545  limsupre2mpt  46558  limsupre3mpt  46562  limsupreuzmpt  46567  supcnvlimsupmpt  46569  liminfvalxrmpt  46614  liminflbuz2  46643  dvnprodlem1  46774  sge0z  47203  sge0f1o  47210  smfsupmpt  47643  smfinfmpt  47647  smflimsupmpt  47657  smfliminfmpt  47660  smfsupdmmbllem  47672  smfinfdmmbllem  47676
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