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| Mirrors > Home > MPE Home > Th. List > enreceq | Structured version Visualization version GIF version | ||
| Description: Equivalence class equality of positive fractions in terms of positive integers. (Contributed by NM, 29-Nov-1995.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| enreceq | ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → ([〈𝐴, 𝐵〉] ~R = [〈𝐶, 𝐷〉] ~R ↔ (𝐴 +P 𝐷) = (𝐵 +P 𝐶))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | enrer 11007 | . . . 4 ⊢ ~R Er (P × P) | |
| 2 | 1 | a1i 11 | . . 3 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → ~R Er (P × P)) |
| 3 | opelxpi 5673 | . . . 4 ⊢ ((𝐴 ∈ P ∧ 𝐵 ∈ P) → 〈𝐴, 𝐵〉 ∈ (P × P)) | |
| 4 | 3 | adantr 483 | . . 3 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → 〈𝐴, 𝐵〉 ∈ (P × P)) |
| 5 | 2, 4 | erth 8717 | . 2 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → (〈𝐴, 𝐵〉 ~R 〈𝐶, 𝐷〉 ↔ [〈𝐴, 𝐵〉] ~R = [〈𝐶, 𝐷〉] ~R )) |
| 6 | enrbreq 11009 | . 2 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → (〈𝐴, 𝐵〉 ~R 〈𝐶, 𝐷〉 ↔ (𝐴 +P 𝐷) = (𝐵 +P 𝐶))) | |
| 7 | 5, 6 | bitr3d 283 | 1 ⊢ (((𝐴 ∈ P ∧ 𝐵 ∈ P) ∧ (𝐶 ∈ P ∧ 𝐷 ∈ P)) → ([〈𝐴, 𝐵〉] ~R = [〈𝐶, 𝐷〉] ~R ↔ (𝐴 +P 𝐷) = (𝐵 +P 𝐶))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 398 = wceq 1550 ∈ wcel 2132 〈cop 4578 class class class wbr 5090 × cxp 5634 (class class class)co 7381 Er wer 8659 [cec 8660 Pcnp 10803 +P cpp 10805 ~R cer 10808 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1805 ax-4 1819 ax-5 1920 ax-6 1977 ax-7 2018 ax-8 2134 ax-9 2142 ax-10 2165 ax-11 2181 ax-12 2202 ax-ext 2724 ax-sep 5236 ax-nul 5246 ax-pow 5312 ax-pr 5380 ax-un 7703 ax-inf2 9582 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-3or 1096 df-3an 1097 df-tru 1553 df-fal 1563 df-ex 1790 df-nf 1794 df-sb 2081 df-mo 2556 df-eu 2586 df-clab 2731 df-cleq 2744 df-clel 2827 df-nfc 2901 df-ne 2948 df-ral 3067 df-rex 3077 df-rmo 3357 df-reu 3358 df-rab 3405 df-v 3446 df-sbc 3736 df-csb 3844 df-dif 3898 df-un 3900 df-in 3902 df-ss 3912 df-pss 3915 df-nul 4277 df-if 4471 df-pw 4547 df-sn 4573 df-pr 4575 df-op 4579 df-uni 4856 df-int 4896 df-iun 4941 df-br 5091 df-opab 5153 df-mpt 5172 df-tr 5198 df-id 5531 df-eprel 5536 df-po 5544 df-so 5545 df-fr 5589 df-we 5591 df-xp 5642 df-rel 5643 df-cnv 5644 df-co 5645 df-dm 5646 df-rn 5647 df-res 5648 df-ima 5649 df-pred 6273 df-ord 6334 df-on 6335 df-lim 6336 df-suc 6337 df-iota 6462 df-fun 6508 df-fn 6509 df-f 6510 df-f1 6511 df-fo 6512 df-f1o 6513 df-fv 6514 df-ov 7384 df-oprab 7385 df-mpo 7386 df-om 7832 df-1st 7955 df-2nd 7956 df-frecs 8246 df-wrecs 8277 df-recs 8326 df-rdg 8365 df-1o 8421 df-oadd 8425 df-omul 8426 df-er 8662 df-ec 8664 df-ni 10816 df-pli 10817 df-mi 10818 df-lti 10819 df-plpq 10852 df-mpq 10853 df-ltpq 10854 df-enq 10855 df-nq 10856 df-erq 10857 df-plq 10858 df-mq 10859 df-1nq 10860 df-rq 10861 df-ltnq 10862 df-np 10925 df-plp 10927 df-ltp 10929 df-enr 10999 |
| This theorem is referenced by: ltsrpr 11021 m1p1sr 11036 m1m1sr 11037 ltsosr 11038 0idsr 11041 1idsr 11042 00sr 11043 recexsrlem 11047 map2psrpr 11054 |
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