i2 : I = intersect((ideal(a,b,c^3-d^3))^2,ideal(a^2-c^2,b^2-d^2))
2 2 2 2 2 3 3 3 3 3 2
o2 = ideal (b c - a d , a b*c - b*c - b d + b*d , a c - a*c - a*b d +
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3 4 2 2 3 2 2 2 2 2 3 2 4 2 2
a*d , b - b d , a*b - a*b*d , a b - a d , a b - a*b*c , a - a c ,
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2 4 6 2 3 3 3 2 4 6
a c - c - 2a c*d + 2c d + b d - d )
o2 : Ideal of R
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