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Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.
added a basic remark on the Relation to torsion groups to Tor.
I have been further editing Tor. There is now in Symmetry in the two arguments an (intentionally) baby version of the proof that $Tor_n^R(A,B) \simeq Tor_n^R(B,A)$, namely for the simple case that $R$ is a principal ideal domain.
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