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Theorem ima0 5146
Description: Image of the empty set. Theorem 3.16(ii) of [Monk1] p. 38. (Contributed by NM, 20-May-1998.)
Assertion
Ref Expression
ima0 (𝐴 “ ∅) = ∅

Proof of Theorem ima0
StepHypRef Expression
1 df-ima 4787 . 2 (𝐴 “ ∅) = ran (𝐴 ↾ ∅)
2 res0 5067 . . 3 (𝐴 ↾ ∅) = ∅
32rneqi 5010 . 2 ran (𝐴 ↾ ∅) = ran ∅
4 rn0 5038 . 2 ran ∅ = ∅
51, 3, 43eqtri 2263 1 (𝐴 “ ∅) = ∅
Colors of variables:    wff set class
This proof depends on syntax axioms:   = wceq 1402  c0 3520  ran crn 4775  cres 4776  cima 4777
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4249  ax-pow 4311  ax-pr 4346
This proof depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-v 2823  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-br 4131  df-opab 4193  df-xp 4780  df-cnv 4782  df-dm 4784  df-rn 4785  df-res 4786  df-ima 4787
This theorem is used by:  supp0cosupp0fn  6507  fiintim  7238  fidcenumlemrk  7271  fidcenumlemr  7272  ennnfonelem1  13300  ennnfonelemhf1o  13306  eupth2lembfi  16730
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