[ SmokeDetector | MS ] Bad keyword in answer, bad keyword with email in answer, pattern-matching email in answer (270): Basis for intersecting subspaces - is there a trick here? by kimperly on math.SE

clearest case of close+delete ever

gotta give the OP credit for finding the dupe themselves

Nonsense in this answer and this answer. This answer is not completely nonsense, but it is still useless to anyone who doesn't already know the answer.

If the second one had just stopped at the first paragraph, they would have been right. :\

D1, D2, D3.

D4, D5, D6.

D7, D8, D9.

D10, D11, D12.

D13, D14, D15.