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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 11024 | . . . 4 ⊢ 1P ∈ P | |
| 2 | addclpr 11027 | . . . . 5 ⊢ ((1P ∈ P ∧ 1P ∈ P) → (1P +P 1P) ∈ P) | |
| 3 | 1, 1, 2 | mp2an 705 | . . . 4 ⊢ (1P +P 1P) ∈ P |
| 4 | opelxpi 5692 | . . . 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 11076 | . . . 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 11071 | . 2 ⊢ -1R = [〈1P, (1P +P 1P)〉] ~R | |
| 10 | df-nr 11065 | . 2 ⊢ R = ((P × P) / ~R ) | |
| 11 | 8, 9, 10 | 3eltr4i 2873 | 1 ⊢ -1R ∈ R |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2145 〈cop 4590 × cxp 5653 (class class class)co 7413 [cec 8694 / cqs 8695 Pcnp 10868 1Pc1p 10869 +P cpp 10870 ~R cer 10873 Rcnr 10874 -1Rcm1r 10877 |
| 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 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7736 ax-inf2 9620 |
| 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 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-ov 7416 df-oprab 7417 df-mpo 7418 df-om 7863 df-1st 7986 df-2nd 7987 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 10881 df-pli 10882 df-mi 10883 df-lti 10884 df-plpq 10917 df-mpq 10918 df-ltpq 10919 df-enq 10920 df-nq 10921 df-erq 10922 df-plq 10923 df-mq 10924 df-1nq 10925 df-rq 10926 df-ltnq 10927 df-np 10990 df-1p 10991 df-plp 10992 df-enr 11064 df-nr 11065 df-m1r 11071 |
| This theorem is used by: negexsr 11111 sqgt0sr 11115 map2psrpr 11119 supsrlem 11120 mulresr 11148 axmulf 11155 axmulass 11166 axdistr 11167 axi2m1 11168 axrnegex 11171 axcnre 11173 |
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