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Mirrors > Home > ILE Home > Th. List > alrot4 | Unicode version |
Description: Rotate 4 universal quantifiers twice. (Contributed by NM, 2-Feb-2005.) (Proof shortened by Wolf Lammen, 28-Jun-2014.) |
Ref | Expression |
---|---|
alrot4 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | alrot3 1374 |
. . 3
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2 | 1 | albii 1359 |
. 2
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3 | alcom 1367 |
. 2
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4 | alcom 1367 |
. . 3
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5 | 4 | albii 1359 |
. 2
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6 | 2, 3, 5 | 3bitri 195 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-5 1336 ax-7 1337 ax-gen 1338 |
This theorem depends on definitions: df-bi 110 |
This theorem is referenced by: fun11 4966 |
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