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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 11020 | . . . . 5 ⊢ 1P ∈ P | |
| 2 | addclpr 11023 | . . . . 5 ⊢ ((1P ∈ P ∧ 1P ∈ P) → (1P +P 1P) ∈ P) | |
| 3 | 1, 1, 2 | mp2an 705 | . . . 4 ⊢ (1P +P 1P) ∈ P |
| 4 | opelxpi 5700 | . . . 4 ⊢ (((1P +P 1P) ∈ P ∧ 1P ∈ P) → 〈(1P +P 1P), 1P〉 ∈ (P × P)) | |
| 5 | 3, 1, 4 | mp2an 705 | . . 3 ⊢ 〈(1P +P 1P), 1P〉 ∈ (P × P) |
| 6 | enrex 11072 | . . . 4 ⊢ ~R ∈ V | |
| 7 | 6 | ecelqsi 8774 | . . 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 11066 | . 2 ⊢ 1R = [〈(1P +P 1P), 1P〉] ~R | |
| 10 | df-nr 11061 | . 2 ⊢ R = ((P × P) / ~R ) | |
| 11 | 8, 9, 10 | 3eltr4i 2878 | 1 ⊢ 1R ∈ R |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2146 〈cop 4597 × cxp 5661 (class class class)co 7420 [cec 8699 / cqs 8700 Pcnp 10864 1Pc1p 10865 +P cpp 10866 ~R cer 10869 Rcnr 10870 1Rc1r 10872 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7743 ax-inf2 9618 |
| 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 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3082 df-rex 3092 df-rmo 3371 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-int 4915 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6307 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6497 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7870 df-1st 7993 df-2nd 7994 df-frecs 8285 df-wrecs 8316 df-recs 8365 df-rdg 8404 df-1o 8460 df-oadd 8464 df-omul 8465 df-er 8701 df-ec 8703 df-qs 8707 df-ni 10877 df-pli 10878 df-mi 10879 df-lti 10880 df-plpq 10913 df-mpq 10914 df-ltpq 10915 df-enq 10916 df-nq 10917 df-erq 10918 df-plq 10919 df-mq 10920 df-1nq 10921 df-rq 10922 df-ltnq 10923 df-np 10986 df-1p 10987 df-plp 10988 df-enr 11060 df-nr 11061 df-1r 11066 |
| This theorem is used by: 1ne0sr 11101 supsr 11117 ax1cn 11154 axicn 11155 axi2m1 11164 ax1ne0 11165 ax1rid 11166 axcnre 11169 |
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