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Mirrors > Home > ILE Home > Th. List > dral2 | Unicode version |
Description: Formula-building lemma for use with the Distinctor Reduction Theorem. Part of Theorem 9.4 of [Megill] p. 448 (p. 16 of preprint). (Contributed by NM, 27-Feb-2005.) |
Ref | Expression |
---|---|
dral2.1 |
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Ref | Expression |
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dral2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | hbae 1697 |
. 2
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2 | dral2.1 |
. 2
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3 | 1, 2 | albidh 1457 |
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-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 |
This theorem depends on definitions: df-bi 116 |
This theorem is referenced by: drnf2 1713 equveli 1733 drnfc1 2299 drnfc2 2300 |
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