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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 11066. (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 10974 | . . 3 ⊢ 0R ∈ R | |
| 2 | snssi 4759 | . . 3 ⊢ (0R ∈ R → {0R} ⊆ R) | |
| 3 | xpss2 5639 | . . 3 ⊢ ({0R} ⊆ R → (R × {0R}) ⊆ (R × R)) | |
| 4 | 1, 2, 3 | mp2b 10 | . 2 ⊢ (R × {0R}) ⊆ (R × R) |
| 5 | df-r 11019 | . 2 ⊢ ℝ = (R × {0R}) | |
| 6 | df-c 11015 | . 2 ⊢ ℂ = (R × R) | |
| 7 | 4, 5, 6 | 3sstr4i 3987 | 1 ⊢ ℝ ⊆ ℂ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2109 ⊆ wss 3903 {csn 4577 × cxp 5617 Rcnr 10759 0Rc0r 10760 ℂcc 11007 ℝcr 11008 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5235 ax-nul 5245 ax-pow 5304 ax-pr 5371 ax-un 7671 ax-inf2 9537 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-ral 3045 df-rex 3054 df-rmo 3343 df-reu 3344 df-rab 3395 df-v 3438 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4859 df-int 4897 df-iun 4943 df-br 5093 df-opab 5155 df-mpt 5174 df-tr 5200 df-id 5514 df-eprel 5519 df-po 5527 df-so 5528 df-fr 5572 df-we 5574 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-rn 5630 df-res 5631 df-ima 5632 df-pred 6249 df-ord 6310 df-on 6311 df-lim 6312 df-suc 6313 df-iota 6438 df-fun 6484 df-fn 6485 df-f 6486 df-f1 6487 df-fo 6488 df-f1o 6489 df-fv 6490 df-ov 7352 df-oprab 7353 df-mpo 7354 df-om 7800 df-1st 7924 df-2nd 7925 df-frecs 8214 df-wrecs 8245 df-recs 8294 df-rdg 8332 df-1o 8388 df-oadd 8392 df-omul 8393 df-er 8625 df-ec 8627 df-qs 8631 df-ni 10766 df-pli 10767 df-mi 10768 df-lti 10769 df-plpq 10802 df-mpq 10803 df-ltpq 10804 df-enq 10805 df-nq 10806 df-erq 10807 df-plq 10808 df-mq 10809 df-1nq 10810 df-rq 10811 df-ltnq 10812 df-np 10875 df-1p 10876 df-enr 10949 df-nr 10950 df-0r 10954 df-c 11015 df-r 11019 |
| This theorem is referenced by: ax1cn 11043 bj-rrhatsscchat 37210 |
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