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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 11139 | . . . 4 ⊢ 1P ∈ P | |
| 2 | addclpr 11142 | . . . . 5 ⊢ ((1P ∈ P ∧ 1P ∈ P) → (1P +P 1P) ∈ P) | |
| 3 | 1, 1, 2 | mp2an 705 | . . . 4 ⊢ (1P +P 1P) ∈ P |
| 4 | opelxpi 5695 | . . . 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 11191 | . . . 4 ⊢ ~R ∈ V | |
| 7 | 6 | ecelqsi 8828 | . . 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 11186 | . 2 ⊢ -1R = [〈1P, (1P +P 1P)〉] ~R | |
| 10 | df-nr 11180 | . 2 ⊢ R = ((P × P) / ~R ) | |
| 11 | 8, 9, 10 | 3eltr4i 2877 | 1 ⊢ -1R ∈ R |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2147 〈cop 4840 × cxp 5656 (class class class)co 7451 [cec 8753 / cqs 8754 Pcnp 10983 1Pc1p 10984 +P cpp 10985 ~R cer 10988 Rcnr 10989 -1Rcm1r 10992 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5255 ax-nul 5266 ax-pow 5334 ax-pr 5398 ax-un 7783 ax-inf2 9679 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-int 4913 df-iun 4958 df-br 5109 df-opab 5174 df-mpt 5193 df-tr 5219 df-id 5553 df-eprel 5558 df-po 5566 df-so 5567 df-fr 5611 df-we 5613 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-res 5670 df-ima 5671 df-pred 6330 df-ord 6391 df-on 6392 df-lim 6393 df-suc 6394 df-iota 6520 df-fun 6568 df-fn 6569 df-f 6570 df-f1 6571 df-fo 6572 df-f1o 6573 df-fv 6574 df-ov 7454 df-oprab 7455 df-mpo 7456 df-om 7912 df-1st 8035 df-2nd 8036 df-frecs 8337 df-wrecs 8368 df-recs 8417 df-rdg 8456 df-1o 8514 df-oadd 8518 df-omul 8519 df-er 8755 df-ec 8757 df-qs 8761 df-ni 10996 df-pli 10997 df-mi 10998 df-lti 10999 df-plpq 11032 df-mpq 11033 df-ltpq 11034 df-enq 11035 df-nq 11036 df-erq 11037 df-plq 11038 df-mq 11039 df-1nq 11040 df-rq 11041 df-ltnq 11042 df-np 11105 df-1p 11106 df-plp 11107 df-enr 11179 df-nr 11180 df-m1r 11186 |
| This theorem is used by: negexsr 11226 sqgt0sr 11230 map2psrpr 11234 supsrlem 11235 mulresr 11263 axmulf 11270 axmulass 11281 axdistr 11282 axi2m1 11283 axrnegex 11286 axcnre 11288 |
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