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Mirrors > Home > MPE Home > Th. List > cpnnen | Structured version Visualization version GIF version |
Description: The complex numbers are equinumerous to the powerset of the positive integers. (Contributed by Mario Carneiro, 16-Jun-2013.) |
Ref | Expression |
---|---|
cpnnen | ⊢ ℂ ≈ 𝒫 ℕ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rexpen 15937 | . . 3 ⊢ (ℝ × ℝ) ≈ ℝ | |
2 | eleq1w 2821 | . . . . . . . . 9 ⊢ (𝑣 = 𝑥 → (𝑣 ∈ ℝ ↔ 𝑥 ∈ ℝ)) | |
3 | eleq1w 2821 | . . . . . . . . 9 ⊢ (𝑤 = 𝑦 → (𝑤 ∈ ℝ ↔ 𝑦 ∈ ℝ)) | |
4 | 2, 3 | bi2anan9 636 | . . . . . . . 8 ⊢ ((𝑣 = 𝑥 ∧ 𝑤 = 𝑦) → ((𝑣 ∈ ℝ ∧ 𝑤 ∈ ℝ) ↔ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ))) |
5 | oveq2 7283 | . . . . . . . . . 10 ⊢ (𝑤 = 𝑦 → (i · 𝑤) = (i · 𝑦)) | |
6 | oveq12 7284 | . . . . . . . . . 10 ⊢ ((𝑣 = 𝑥 ∧ (i · 𝑤) = (i · 𝑦)) → (𝑣 + (i · 𝑤)) = (𝑥 + (i · 𝑦))) | |
7 | 5, 6 | sylan2 593 | . . . . . . . . 9 ⊢ ((𝑣 = 𝑥 ∧ 𝑤 = 𝑦) → (𝑣 + (i · 𝑤)) = (𝑥 + (i · 𝑦))) |
8 | 7 | eqeq2d 2749 | . . . . . . . 8 ⊢ ((𝑣 = 𝑥 ∧ 𝑤 = 𝑦) → (𝑧 = (𝑣 + (i · 𝑤)) ↔ 𝑧 = (𝑥 + (i · 𝑦)))) |
9 | 4, 8 | anbi12d 631 | . . . . . . 7 ⊢ ((𝑣 = 𝑥 ∧ 𝑤 = 𝑦) → (((𝑣 ∈ ℝ ∧ 𝑤 ∈ ℝ) ∧ 𝑧 = (𝑣 + (i · 𝑤))) ↔ ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝑧 = (𝑥 + (i · 𝑦))))) |
10 | 9 | cbvoprab12v 7365 | . . . . . 6 ⊢ {〈〈𝑣, 𝑤〉, 𝑧〉 ∣ ((𝑣 ∈ ℝ ∧ 𝑤 ∈ ℝ) ∧ 𝑧 = (𝑣 + (i · 𝑤)))} = {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝑧 = (𝑥 + (i · 𝑦)))} |
11 | df-mpo 7280 | . . . . . 6 ⊢ (𝑥 ∈ ℝ, 𝑦 ∈ ℝ ↦ (𝑥 + (i · 𝑦))) = {〈〈𝑥, 𝑦〉, 𝑧〉 ∣ ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝑧 = (𝑥 + (i · 𝑦)))} | |
12 | 10, 11 | eqtr4i 2769 | . . . . 5 ⊢ {〈〈𝑣, 𝑤〉, 𝑧〉 ∣ ((𝑣 ∈ ℝ ∧ 𝑤 ∈ ℝ) ∧ 𝑧 = (𝑣 + (i · 𝑤)))} = (𝑥 ∈ ℝ, 𝑦 ∈ ℝ ↦ (𝑥 + (i · 𝑦))) |
13 | 12 | cnref1o 12725 | . . . 4 ⊢ {〈〈𝑣, 𝑤〉, 𝑧〉 ∣ ((𝑣 ∈ ℝ ∧ 𝑤 ∈ ℝ) ∧ 𝑧 = (𝑣 + (i · 𝑤)))}:(ℝ × ℝ)–1-1-onto→ℂ |
14 | reex 10962 | . . . . . 6 ⊢ ℝ ∈ V | |
15 | 14, 14 | xpex 7603 | . . . . 5 ⊢ (ℝ × ℝ) ∈ V |
16 | 15 | f1oen 8761 | . . . 4 ⊢ ({〈〈𝑣, 𝑤〉, 𝑧〉 ∣ ((𝑣 ∈ ℝ ∧ 𝑤 ∈ ℝ) ∧ 𝑧 = (𝑣 + (i · 𝑤)))}:(ℝ × ℝ)–1-1-onto→ℂ → (ℝ × ℝ) ≈ ℂ) |
17 | 13, 16 | ax-mp 5 | . . 3 ⊢ (ℝ × ℝ) ≈ ℂ |
18 | 1, 17 | entr3i 8796 | . 2 ⊢ ℝ ≈ ℂ |
19 | rpnnen 15936 | . 2 ⊢ ℝ ≈ 𝒫 ℕ | |
20 | 18, 19 | entr3i 8796 | 1 ⊢ ℂ ≈ 𝒫 ℕ |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 396 = wceq 1539 ∈ wcel 2106 𝒫 cpw 4533 class class class wbr 5074 × cxp 5587 –1-1-onto→wf1o 6432 (class class class)co 7275 {coprab 7276 ∈ cmpo 7277 ≈ cen 8730 ℂcc 10869 ℝcr 10870 ici 10873 + caddc 10874 · cmul 10876 ℕcn 11973 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-inf2 9399 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 ax-pre-sup 10949 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-int 4880 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-se 5545 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-isom 6442 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-1st 7831 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-2o 8298 df-oadd 8301 df-omul 8302 df-er 8498 df-map 8617 df-pm 8618 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-sup 9201 df-inf 9202 df-oi 9269 df-card 9697 df-acn 9700 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-div 11633 df-nn 11974 df-2 12036 df-3 12037 df-n0 12234 df-z 12320 df-uz 12583 df-q 12689 df-rp 12731 df-ico 13085 df-icc 13086 df-fz 13240 df-fzo 13383 df-fl 13512 df-seq 13722 df-exp 13783 df-hash 14045 df-cj 14810 df-re 14811 df-im 14812 df-sqrt 14946 df-abs 14947 df-limsup 15180 df-clim 15197 df-rlim 15198 df-sum 15398 |
This theorem is referenced by: cnso 15956 |
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