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Mirrors > Home > ILE Home > Th. List > 2cnd | GIF version |
Description: 2 is a complex number, deductive form (common case). (Contributed by David A. Wheeler, 8-Dec-2018.) |
Ref | Expression |
---|---|
2cnd | ⊢ (𝜑 → 2 ∈ ℂ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2cn 8110 | . 2 ⊢ 2 ∈ ℂ | |
2 | 1 | a1i 9 | 1 ⊢ (𝜑 → 2 ∈ ℂ) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∈ wcel 1433 ℂcc 6979 2c2 8089 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-11 1437 ax-4 1440 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-resscn 7068 ax-1re 7070 ax-addrcl 7073 |
This theorem depends on definitions: df-bi 115 df-nf 1390 df-sb 1686 df-clab 2068 df-cleq 2074 df-clel 2077 df-in 2979 df-ss 2986 df-2 8098 |
This theorem is referenced by: cnm2m1cnm3 8282 xp1d2m1eqxm1d2 8283 nneo 8450 zeo2 8453 2tnp1ge0ge0 9303 flhalf 9304 q2txmodxeq0 9386 mulbinom2 9589 binom3 9590 zesq 9591 sqoddm1div8 9625 cvg1nlemcxze 9868 resqrexlemover 9896 resqrexlemlo 9899 resqrexlemcalc1 9900 resqrexlemnm 9904 amgm2 10004 maxabslemab 10092 maxabslemlub 10093 max0addsup 10105 even2n 10273 oddm1even 10274 oddp1even 10275 mulsucdiv2z 10285 ltoddhalfle 10293 m1exp1 10301 nn0enne 10302 flodddiv4 10334 flodddiv4t2lthalf 10337 sqrt2irrlem 10540 sqrt2irr 10541 pw2dvdslemn 10543 pw2dvdseulemle 10545 oddpwdc 10552 sqrt2irraplemnn 10557 |
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