i1 : P = makePolynomialOIAlgebra(2, x, QQ);
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i2 : F = makeFreeOIModule(e, {1,1}, P);
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i3 : installGeneratorsInWidth(F, 2);
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i4 : b = x_(1,2)*x_(1,1)*e_(2,{2},1)+x_(2,2)*x_(2,1)*e_(2,{1},2);
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i5 : time C = oiRes({b}, 1);
-- used 0.192274s (cpu); 0.113069s (thread); 0s (gc)
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i6 : net C
o6 = 0: (e0, {2}, {-2})
1: (e1, {4, 4}, {-4, -4})
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