ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  apsscn GIF version

Theorem apsscn 8938
Description: The points apart from a given point are complex numbers. (Contributed by Jim Kingdon, 19-Dec-2023.)
Assertion
Ref Expression
apsscn {𝑥𝐴𝑥 # 𝐵} ⊆ ℂ
Distinct variable groups:   𝑥,𝐴   𝑥,𝐵

Proof of Theorem apsscn
Dummy variable 𝑦 is distinct from all other variables.
StepHypRef Expression
1 breq1 4117 . . . . 5 (𝑥 = 𝑦 → (𝑥 # 𝐵𝑦 # 𝐵))
21elrab 2976 . . . 4 (𝑦 ∈ {𝑥𝐴𝑥 # 𝐵} ↔ (𝑦𝐴𝑦 # 𝐵))
3 aprcl 8937 . . . 4 (𝑦 # 𝐵 → (𝑦 ∈ ℂ ∧ 𝐵 ∈ ℂ))
42, 3simplbiim 387 . . 3 (𝑦 ∈ {𝑥𝐴𝑥 # 𝐵} → (𝑦 ∈ ℂ ∧ 𝐵 ∈ ℂ))
54simpld 112 . 2 (𝑦 ∈ {𝑥𝐴𝑥 # 𝐵} → 𝑦 ∈ ℂ)
65ssriv 3246 1 {𝑥𝐴𝑥 # 𝐵} ⊆ ℂ
Colors of variables: wff set class
Syntax hints:  wa 104  wcel 2205  {crab 2526  wss 3214   class class class wbr 4114  cc 8141   # cap 8872
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-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 2207  ax-14 2208  ax-ext 2216  ax-sep 4233  ax-pow 4292  ax-pr 4327  ax-un 4559  ax-resscn 8235  ax-icn 8238  ax-addcl 8239  ax-mulcl 8241
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1812  df-eu 2085  df-mo 2086  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ral 2527  df-rex 2528  df-rab 2531  df-v 2817  df-sbc 3046  df-un 3218  df-in 3220  df-ss 3227  df-pw 3676  df-sn 3700  df-pr 3701  df-op 3703  df-uni 3920  df-br 4115  df-opab 4177  df-mpt 4178  df-id 4419  df-xp 4760  df-rel 4761  df-cnv 4762  df-co 4763  df-dm 4764  df-rn 4765  df-iota 5317  df-fun 5359  df-fn 5360  df-f 5361  df-fo 5363  df-fv 5365  df-1st 6347  df-2nd 6348  df-ap 8873
This theorem is referenced by:  expghmap  14867  maxcncf  15592  mincncf  15593  limccoap  15655  dveflem  15703
  Copyright terms: Public domain W3C validator