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Related theorems GIF version |
| Description: The constant 1R is a signed real. |
| Ref | Expression |
|---|---|
| 1r | ⊢ 1R ∈ R |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1pr 3911 | . . . . 5 ⊢ 1P ∈ P | |
| 2 | addclpr 3914 | . . . . 5 ⊢ ((1P ∈ P ∧ 1P ∈ P) → (1P +P 1P) ∈ P) | |
| 3 | 1, 1, 2 | mp2an 520 | . . . 4 ⊢ (1P +P 1P) ∈ P |
| 4 | opelxpi 2455 | . . . 4 ⊢ (((1P +P 1P) ∈ P ∧ 1P ∈ P) → 〈(1P +P 1P), 1P〉 ∈ (P × P)) | |
| 5 | 3, 1, 4 | mp2an 520 | . . 3 ⊢ 〈(1P +P 1P), 1P〉 ∈ (P × P) |
| 6 | enrex 3972 | . . . 4 ⊢ ~R ∈ V | |
| 7 | 6 | ecelqsi 3229 | . . 3 ⊢ (〈(1P +P 1P), 1P〉 ∈ (P × P) → [〈(1P +P 1P), 1P〉] ~R ∈ ((P × P) / ~R )) |
| 8 | 5, 7 | ax-mp 6 | . 2 ⊢ [〈(1P +P 1P), 1P〉] ~R ∈ ((P × P) / ~R ) |
| 9 | df-1r 3966 | . . 3 ⊢ 1R = [〈(1P +P 1P), 1P〉] ~R | |
| 10 | df-nr 3961 | . . 3 ⊢ R = ((P × P) / ~R ) | |
| 11 | 9, 10 | eleq12i 1154 | . 2 ⊢ (1R ∈ R ↔ [〈(1P +P 1P), 1P〉] ~R ∈ ((P × P) / ~R )) |
| 12 | 8, 11 | mpbir 165 | 1 ⊢ 1R ∈ R |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 1092 〈cop 1810 × cxp 2408 (class class class)co 3001 [cec 3198 / cqs 3199 Pcnp 3779 1Pc1p 3780 +P cpp 3781 ~R cer 3786 Rcnr 3787 1Rc1r 3789 |
| This theorem is referenced by: 1ne0sr 3999 pn0sr 4004 recexsrlem 4006 supsrlem5 4023 ax1re 4064 axicn 4065 ax1ne0 4075 ax1id 4077 axrecex 4079 axi2m1 4082 axcnre 4087 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-un 1076 ax-pow 1077 ax-reg 1078 ax-inf 1079 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-3or 582 df-3an 583 df-ex 679 df-sb 853 df-eu 1009 df-mo 1010 df-clab 1093 df-cleq 1097 df-clel 1099 df-ne 1192 df-ral 1205 df-rex 1206 df-reu 1207 df-rab 1208 df-v 1349 df-sbc 1441 df-dif 1489 df-un 1490 df-in 1491 df-ss 1492 df-pss 1494 df-nul 1708 df-if 1777 df-pw 1799 df-sn 1811 df-pr 1812 df-tp 1814 df-op 1815 df-uni 1920 df-int 1966 df-iun 1996 df-tr 2042 df-br 2063 df-opab 2098 df-eprel 2122 df-id 2125 df-po 2128 df-so 2138 df-fr 2169 df-we 2186 df-ord 2202 df-on 2203 df-lim 2204 df-suc 2205 df-om 2373 df-xp 2424 df-rel 2425 df-cnv 2426 df-co 2427 df-dm 2428 df-rn 2429 df-res 2430 df-ima 2431 df-fun 2432 df-fn 2433 df-f 2434 df-f1 2435 df-fv 2438 df-rdg 2970 df-opr 3003 df-oprab 3004 df-1o 3104 df-oadd 3106 df-omul 3107 df-er 3200 df-ec 3202 df-qs 3205 df-ni 3794 df-pli 3795 df-mi 3796 df-lti 3797 df-plpq 3829 df-mpq 3830 df-enq 3831 df-nq 3832 df-plq 3833 df-mq 3834 df-rq 3835 df-ltq 3836 df-1q 3837 df-np 3880 df-1p 3881 df-plp 3882 df-enr 3960 df-nr 3961 df-1r 3966 |