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| Mirrors > Home > MPE Home > Th. List > Mathboxes > 0cnALT3 | Structured version Visualization version GIF version | ||
| Description: Alternate proof of 0cn 11136 using ax-resscn 11095, ax-addrcl 11099, ax-rnegex 11109, ax-cnre 11111 instead of ax-icn 11097, ax-addcl 11098, ax-mulcl 11100, ax-i2m1 11106. Version of 0cnALT 11380 using ax-1cn 11096 instead of ax-icn 11097. (Contributed by Steven Nguyen, 7-Jan-2022.) (Proof modification is discouraged.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| 0cnALT3 | ⊢ 0 ∈ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0re 11146 | . 2 ⊢ 0 ∈ ℝ | |
| 2 | 1 | recni 11158 | 1 ⊢ 0 ∈ ℂ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 ℂcc 11036 0cc0 11038 |
| 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 11095 ax-1cn 11096 ax-addrcl 11099 ax-rnegex 11109 ax-cnre 11111 |
| 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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