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Theorem 0cnALT3 42652
Description: Alternate proof of 0cn 11138 using ax-resscn 11097, ax-addrcl 11101, ax-rnegex 11111, ax-cnre 11113 instead of ax-icn 11099, ax-addcl 11100, ax-mulcl 11102, ax-i2m1 11108. Version of 0cnALT 11382 using ax-1cn 11098 instead of ax-icn 11099. (Contributed by Steven Nguyen, 7-Jan-2022.) (Proof modification is discouraged.) (New usage is discouraged.)
Assertion
Ref Expression
0cnALT3 0 ∈ ℂ

Proof of Theorem 0cnALT3
StepHypRef Expression
1 0re 11148 . 2 0 ∈ ℝ
21recni 11160 1 0 ∈ ℂ
Colors of variables: wff setvar class
Syntax hints:  wcel 2114  cc 11038  0cc0 11040
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-ext 2709  ax-resscn 11097  ax-1cn 11098  ax-addrcl 11101  ax-rnegex 11111  ax-cnre 11113
This theorem depends on definitions:  df-bi 207  df-an 396  df-ex 1782  df-cleq 2729  df-clel 2812  df-rex 3063  df-ss 3920
This theorem is referenced by: (None)
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