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Mirrors > Home > MPE Home > Th. List > opabbidv | Structured version Visualization version GIF version |
Description: Equivalent wff's yield equal ordered-pair class abstractions (deduction form). (Contributed by NM, 15-May-1995.) |
Ref | Expression |
---|---|
opabbidv.1 | ⊢ (𝜑 → (𝜓 ↔ 𝜒)) |
Ref | Expression |
---|---|
opabbidv | ⊢ (𝜑 → {〈𝑥, 𝑦〉 ∣ 𝜓} = {〈𝑥, 𝑦〉 ∣ 𝜒}) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | opabbidv.1 | . . . . 5 ⊢ (𝜑 → (𝜓 ↔ 𝜒)) | |
2 | 1 | anbi2d 632 | . . . 4 ⊢ (𝜑 → ((𝑧 = 〈𝑥, 𝑦〉 ∧ 𝜓) ↔ (𝑧 = 〈𝑥, 𝑦〉 ∧ 𝜒))) |
3 | 2 | 2exbidv 1932 | . . 3 ⊢ (𝜑 → (∃𝑥∃𝑦(𝑧 = 〈𝑥, 𝑦〉 ∧ 𝜓) ↔ ∃𝑥∃𝑦(𝑧 = 〈𝑥, 𝑦〉 ∧ 𝜒))) |
4 | 3 | abbidv 2800 | . 2 ⊢ (𝜑 → {𝑧 ∣ ∃𝑥∃𝑦(𝑧 = 〈𝑥, 𝑦〉 ∧ 𝜓)} = {𝑧 ∣ ∃𝑥∃𝑦(𝑧 = 〈𝑥, 𝑦〉 ∧ 𝜒)}) |
5 | df-opab 5102 | . 2 ⊢ {〈𝑥, 𝑦〉 ∣ 𝜓} = {𝑧 ∣ ∃𝑥∃𝑦(𝑧 = 〈𝑥, 𝑦〉 ∧ 𝜓)} | |
6 | df-opab 5102 | . 2 ⊢ {〈𝑥, 𝑦〉 ∣ 𝜒} = {𝑧 ∣ ∃𝑥∃𝑦(𝑧 = 〈𝑥, 𝑦〉 ∧ 𝜒)} | |
7 | 4, 5, 6 | 3eqtr4g 2796 | 1 ⊢ (𝜑 → {〈𝑥, 𝑦〉 ∣ 𝜓} = {〈𝑥, 𝑦〉 ∣ 𝜒}) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 = wceq 1543 ∃wex 1787 {cab 2714 〈cop 4533 {copab 5101 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-9 2122 ax-ext 2708 |
This theorem depends on definitions: df-bi 210 df-an 400 df-ex 1788 df-sb 2073 df-clab 2715 df-cleq 2728 df-opab 5102 |
This theorem is referenced by: opabbii 5106 csbopab 5421 csbopabgALT 5422 csbmpt12 5423 xpeq1 5550 xpeq2 5557 opabbi2dv 5703 csbcnvgALT 5738 resopab2 5889 mptcnv 5983 cores 6093 xpco 6132 dffn5 6749 f1oiso2 7139 fvmptopab 7244 f1ocnvd 7434 ofreq 7450 mptmpoopabbrd 7829 bropopvvv 7836 bropfvvvv 7838 fnwelem 7876 sprmpod 7944 mpocurryd 7989 wemapwe 9290 xpcogend 14502 shftfval 14598 2shfti 14608 prdsval 16914 pwsle 16951 sectffval 17209 sectfval 17210 isfunc 17324 isfull 17371 isfth 17375 ipoval 17990 eqgfval 18546 dvdsrval 19617 dvdsrpropd 19668 ltbval 20954 opsrval 20957 lmfval 22083 xkocnv 22665 tgphaus 22968 isphtpc 23845 bcthlem1 24175 bcth 24180 ulmval 25226 lgsquadlem3 26217 iscgrg 26557 legval 26629 ishlg 26647 perpln1 26755 perpln2 26756 isperp 26757 ishpg 26804 iscgra 26854 isinag 26883 isleag 26892 wksfval 27651 upgrtrls 27743 upgrspthswlk 27779 ajfval 28844 f1o3d 30635 f1od2 30730 mgcoval 30937 inftmrel 31107 isinftm 31108 quslsm 31261 idlsrgval 31316 metidval 31508 faeval 31880 eulerpartlemgvv 32009 eulerpart 32015 afsval 32317 satf 32982 satfvsuc 32990 satfv1 32992 satf0suc 33005 sat1el2xp 33008 fmlasuc0 33013 bj-imdirvallem 35035 bj-imdirval2 35038 bj-imdirco 35045 bj-iminvval2 35049 cureq 35439 curf 35441 curunc 35445 fnopabeqd 35564 cosseq 36235 lcvfbr 36720 cmtfvalN 36910 cvrfval 36968 dicffval 38874 dicfval 38875 dicval 38876 prjspval 40091 prjspnerlem 40105 0prjspn 40114 dnwech 40517 aomclem8 40530 rfovcnvfvd 41233 fsovrfovd 41235 dfafn5a 44267 sprsymrelfv 44562 sprsymrelfo 44565 upwlksfval 44913 |
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