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| Mirrors > Home > MPE Home > Th. List > 1sr | Structured version Visualization version GIF version | ||
| Description: The constant 1R is a signed real. (Contributed by NM, 9-Aug-1995.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| 1sr | ⊢ 1R ∈ R |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1pr 10933 | . . . . 5 ⊢ 1P ∈ P | |
| 2 | addclpr 10936 | . . . . 5 ⊢ ((1P ∈ P ∧ 1P ∈ P) → (1P +P 1P) ∈ P) | |
| 3 | 1, 1, 2 | mp2an 693 | . . . 4 ⊢ (1P +P 1P) ∈ P |
| 4 | opelxpi 5663 | . . . 4 ⊢ (((1P +P 1P) ∈ P ∧ 1P ∈ P) → 〈(1P +P 1P), 1P〉 ∈ (P × P)) | |
| 5 | 3, 1, 4 | mp2an 693 | . . 3 ⊢ 〈(1P +P 1P), 1P〉 ∈ (P × P) |
| 6 | enrex 10985 | . . . 4 ⊢ ~R ∈ V | |
| 7 | 6 | ecelqsi 8711 | . . 3 ⊢ (〈(1P +P 1P), 1P〉 ∈ (P × P) → [〈(1P +P 1P), 1P〉] ~R ∈ ((P × P) / ~R )) |
| 8 | 5, 7 | ax-mp 5 | . 2 ⊢ [〈(1P +P 1P), 1P〉] ~R ∈ ((P × P) / ~R ) |
| 9 | df-1r 10979 | . 2 ⊢ 1R = [〈(1P +P 1P), 1P〉] ~R | |
| 10 | df-nr 10974 | . 2 ⊢ R = ((P × P) / ~R ) | |
| 11 | 8, 9, 10 | 3eltr4i 2850 | 1 ⊢ 1R ∈ R |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 〈cop 4574 × cxp 5624 (class class class)co 7362 [cec 8636 / cqs 8637 Pcnp 10777 1Pc1p 10778 +P cpp 10779 ~R cer 10782 Rcnr 10783 1Rc1r 10785 |
| 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-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5232 ax-nul 5242 ax-pow 5304 ax-pr 5372 ax-un 7684 ax-inf2 9557 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5521 df-eprel 5526 df-po 5534 df-so 5535 df-fr 5579 df-we 5581 df-xp 5632 df-rel 5633 df-cnv 5634 df-co 5635 df-dm 5636 df-rn 5637 df-res 5638 df-ima 5639 df-pred 6261 df-ord 6322 df-on 6323 df-lim 6324 df-suc 6325 df-iota 6450 df-fun 6496 df-fn 6497 df-f 6498 df-f1 6499 df-fo 6500 df-f1o 6501 df-fv 6502 df-ov 7365 df-oprab 7366 df-mpo 7367 df-om 7813 df-1st 7937 df-2nd 7938 df-frecs 8226 df-wrecs 8257 df-recs 8306 df-rdg 8344 df-1o 8400 df-oadd 8404 df-omul 8405 df-er 8638 df-ec 8640 df-qs 8644 df-ni 10790 df-pli 10791 df-mi 10792 df-lti 10793 df-plpq 10826 df-mpq 10827 df-ltpq 10828 df-enq 10829 df-nq 10830 df-erq 10831 df-plq 10832 df-mq 10833 df-1nq 10834 df-rq 10835 df-ltnq 10836 df-np 10899 df-1p 10900 df-plp 10901 df-enr 10973 df-nr 10974 df-1r 10979 |
| This theorem is referenced by: 1ne0sr 11014 supsr 11030 ax1cn 11067 axicn 11068 axi2m1 11077 ax1ne0 11078 ax1rid 11079 axcnre 11082 |
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