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Mirrors > Home > ILE Home > Th. List > dcbii | Unicode version |
Description: Equivalence property for decidability. Inference form. (Contributed by Jim Kingdon, 28-Mar-2018.) |
Ref | Expression |
---|---|
dcbii.1 |
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Ref | Expression |
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dcbii |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dcbii.1 |
. 2
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2 | dcbiit 825 |
. 2
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3 | 1, 2 | ax-mp 5 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 |
This theorem depends on definitions: df-bi 116 df-dc 821 |
This theorem is referenced by: dcbi 921 dcned 2315 dfrex2dc 2429 euxfr2dc 2873 exmidexmid 4128 exfzdc 10048 nninfsellemdc 13381 |
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