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| Mirrors > Home > MPE Home > Th. List > m1r | 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 |
|---|---|
| m1r | ⊢ -1R ∈ R |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1pr 11011 | . . . 4 ⊢ 1P ∈ P | |
| 2 | addclpr 11014 | . . . . 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, (1P +P 1P)〉 ∈ (P × P)) | |
| 5 | 1, 3, 4 | mp2an 705 | . . 3 ⊢ 〈1P, (1P +P 1P)〉 ∈ (P × P) |
| 6 | enrex 11063 | . . . 4 ⊢ ~R ∈ V | |
| 7 | 6 | ecelqsi 8769 | . . 3 ⊢ (〈1P, (1P +P 1P)〉 ∈ (P × P) → [〈1P, (1P +P 1P)〉] ~R ∈ ((P × P) / ~R )) |
| 8 | 5, 7 | ax-mp 5 | . 2 ⊢ [〈1P, (1P +P 1P)〉] ~R ∈ ((P × P) / ~R ) |
| 9 | df-m1r 11058 | . 2 ⊢ -1R = [〈1P, (1P +P 1P)〉] ~R | |
| 10 | df-nr 11052 | . 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 7416 [cec 8694 / cqs 8695 Pcnp 10855 1Pc1p 10856 +P cpp 10857 ~R cer 10860 Rcnr 10861 -1Rcm1r 10864 |
| 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 7738 ax-inf2 9613 |
| 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 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-ov 7419 df-oprab 7420 df-mpo 7421 df-om 7865 df-1st 7988 df-2nd 7989 df-frecs 8280 df-wrecs 8311 df-recs 8360 df-rdg 8399 df-1o 8455 df-oadd 8459 df-omul 8460 df-er 8696 df-ec 8698 df-qs 8702 df-ni 10868 df-pli 10869 df-mi 10870 df-lti 10871 df-plpq 10904 df-mpq 10905 df-ltpq 10906 df-enq 10907 df-nq 10908 df-erq 10909 df-plq 10910 df-mq 10911 df-1nq 10912 df-rq 10913 df-ltnq 10914 df-np 10977 df-1p 10978 df-plp 10979 df-enr 11051 df-nr 11052 df-m1r 11058 |
| This theorem is used by: negexsr 11098 sqgt0sr 11102 map2psrpr 11106 supsrlem 11107 mulresr 11135 axmulf 11142 axmulass 11153 axdistr 11154 axi2m1 11155 axrnegex 11158 axcnre 11160 |
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