1
(p123,p124,p134,p234,p125,p135,p235,p145,p245,p345,p126,p136,p236,p146,p246,p346,p156,p256,p356,p456)
1
Q[p123,p124,p134,p234,p125,p135,p235,p145,p245,p345,p126,p136,p236,p146,p246,p346,p156,p256,p356,p456]
2
2
{p346*p256 - p246*p356 + p236*p456,
3
3
p346*p156 - p146*p356 + p136*p456,
4
4
p246*p156 - p146*p256 + p126*p456,