Don't create multiplication tables just for the sake of Opposite
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@ -842,7 +842,7 @@ InstallGlobalFunction( OppositeLoop, L -> IntoLoop( Opposite( L ) ) );
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## as can be preserved.
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InstallMethod( Opposite, "for magma",
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[ IsMagma ],
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[ IsMagma and HasMultiplicationTable],
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M -> ConstructorFromTable(M)( TransposedMat( MultiplicationTable( M ) ) )
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);
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