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Theorem elmapfn 6905
Description: A mapping is a function with the appropriate domain. (Contributed by AV, 6-Apr-2019.)
Assertion
Ref Expression
elmapfn (𝐴 ∈ (𝐵𝑚 𝐶) → 𝐴 Fn 𝐶)

Proof of Theorem elmapfn
StepHypRef Expression
1 elmapi 6904 . 2 (𝐴 ∈ (𝐵𝑚 𝐶) → 𝐴:𝐶𝐵)
2 ffn 5508 . 2 (𝐴:𝐶𝐵𝐴 Fn 𝐶)
31, 2syl 14 1 (𝐴 ∈ (𝐵𝑚 𝐶) → 𝐴 Fn 𝐶)
Colors of variables: wff set class
Syntax hints:  wi 4  wcel 2203   Fn wfn 5347  wf 5348  (class class class)co 6050  𝑚 cmap 6882
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 619  ax-in2 620  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2205  ax-14 2206  ax-ext 2214  ax-sep 4228  ax-pow 4287  ax-pr 4322  ax-un 4554  ax-setind 4659
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2083  df-mo 2084  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-ne 2413  df-ral 2525  df-rex 2526  df-v 2815  df-sbc 3043  df-dif 3213  df-un 3215  df-in 3217  df-ss 3224  df-pw 3671  df-sn 3695  df-pr 3696  df-op 3698  df-uni 3915  df-br 4110  df-opab 4172  df-id 4414  df-xp 4755  df-rel 4756  df-cnv 4757  df-co 4758  df-dm 4759  df-rn 4760  df-iota 5312  df-fun 5354  df-fn 5355  df-f 5356  df-fv 5360  df-ov 6053  df-oprab 6054  df-mpo 6055  df-map 6884
This theorem is referenced by:  mapxpen  7101  acnccim  7586  psrbagfi  14823  peano4nninf  16784
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