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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 11104 | . . . 4 ⊢ 1P ∈ P | |
| 2 | addclpr 11107 | . . . . 5 ⊢ ((1P ∈ P ∧ 1P ∈ P) → (1P +P 1P) ∈ P) | |
| 3 | 1, 1, 2 | mp2an 705 | . . . 4 ⊢ (1P +P 1P) ∈ P |
| 4 | opelxpi 5687 | . . . 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 11156 | . . . 4 ⊢ ~R ∈ V | |
| 7 | 6 | ecelqsi 8794 | . . 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 11151 | . 2 ⊢ -1R = [〈1P, (1P +P 1P)〉] ~R | |
| 10 | df-nr 11145 | . 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 2144 〈cop 4834 × cxp 5648 (class class class)co 7421 [cec 8719 / cqs 8720 Pcnp 10948 1Pc1p 10949 +P cpp 10950 ~R cer 10953 Rcnr 10954 -1Rcm1r 10957 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7752 ax-inf2 9646 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 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 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-int 4907 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6541 df-fn 6542 df-f 6543 df-f1 6544 df-fo 6545 df-f1o 6546 df-fv 6547 df-ov 7424 df-oprab 7425 df-mpo 7426 df-om 7879 df-1st 8002 df-2nd 8003 df-frecs 8303 df-wrecs 8334 df-recs 8383 df-rdg 8422 df-1o 8480 df-oadd 8484 df-omul 8485 df-er 8721 df-ec 8723 df-qs 8727 df-ni 10961 df-pli 10962 df-mi 10963 df-lti 10964 df-plpq 10997 df-mpq 10998 df-ltpq 10999 df-enq 11000 df-nq 11001 df-erq 11002 df-plq 11003 df-mq 11004 df-1nq 11005 df-rq 11006 df-ltnq 11007 df-np 11070 df-1p 11071 df-plp 11072 df-enr 11144 df-nr 11145 df-m1r 11151 |
| This theorem is used by: negexsr 11191 sqgt0sr 11195 map2psrpr 11199 supsrlem 11200 mulresr 11228 axmulf 11235 axmulass 11246 axdistr 11247 axi2m1 11248 axrnegex 11251 axcnre 11253 |
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