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| Mirrors > Home > MPE Home > Th. List > axresscn | Structured version Visualization version GIF version | ||
| Description: The real numbers are a subset of the complex numbers. Axiom 1 of 22 for real and complex numbers, derived from ZF set theory. This construction-dependent theorem should not be referenced directly; instead, use ax-resscn 11296. (Contributed by NM, 1-Mar-1995.) (Proof shortened by Andrew Salmon, 12-Aug-2011.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| axresscn | ⊢ ℝ ⊆ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0r 11204 | . . 3 ⊢ 0R ∈ R | |
| 2 | snssi 4748 | . . 3 ⊢ (0R ∈ R → {0R} ⊆ R) | |
| 3 | xpss2 5678 | . . 3 ⊢ ({0R} ⊆ R → (R × {0R}) ⊆ (R × R)) | |
| 4 | 1, 2, 3 | mp2b 10 | . 2 ⊢ (R × {0R}) ⊆ (R × R) |
| 5 | df-r 11249 | . 2 ⊢ ℝ = (R × {0R}) | |
| 6 | df-c 11245 | . 2 ⊢ ℂ = (R × R) | |
| 7 | 4, 5, 6 | 3sstr4i 3964 | 1 ⊢ ℝ ⊆ ℂ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2147 ⊆ wss 3900 {csn 4588 × cxp 5656 Rcnr 10989 0Rc0r 10990 ℂcc 11237 ℝcr 11238 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5255 ax-nul 5266 ax-pow 5334 ax-pr 5398 ax-un 7783 ax-inf2 9679 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-int 4913 df-iun 4958 df-br 5109 df-opab 5174 df-mpt 5193 df-tr 5219 df-id 5553 df-eprel 5558 df-po 5566 df-so 5567 df-fr 5611 df-we 5613 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-res 5670 df-ima 5671 df-pred 6330 df-ord 6391 df-on 6392 df-lim 6393 df-suc 6394 df-iota 6520 df-fun 6568 df-fn 6569 df-f 6570 df-f1 6571 df-fo 6572 df-f1o 6573 df-fv 6574 df-ov 7454 df-oprab 7455 df-mpo 7456 df-om 7912 df-1st 8035 df-2nd 8036 df-frecs 8337 df-wrecs 8368 df-recs 8417 df-rdg 8456 df-1o 8514 df-oadd 8518 df-omul 8519 df-er 8755 df-ec 8757 df-qs 8761 df-ni 10996 df-pli 10997 df-mi 10998 df-lti 10999 df-plpq 11032 df-mpq 11033 df-ltpq 11034 df-enq 11035 df-nq 11036 df-erq 11037 df-plq 11038 df-mq 11039 df-1nq 11040 df-rq 11041 df-ltnq 11042 df-np 11105 df-1p 11106 df-enr 11179 df-nr 11180 df-0r 11184 df-c 11245 df-r 11249 |
| This theorem is used by: ax1cn 11273 bj-rrhatsscchat 38425 |
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