Talk:Paraffins: Difference between revisions
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::Conceptually speaking, we would be looking for graph equivalence here. Although the graph can be represented as a tree, "equivalence" allows any node in the tree to be the root, and the branches from any node can be in any order. --[[User:Rdm|Rdm]] 20:59, 5 December 2011 (UTC)
:::I think deciding to go by graph equivalence answers the isomer question. Stereo isomers have equivalent graphs and so would not be counted. This is what A000602 does. It also answers the question of physically ipossible isomers that start at C16. We would count these because we can produce a graph for them, even though they cannot physically exist. —[[User:Sonia|Sonia]] 21:31, 5 December 2011 (UTC)
=== stereo-isomers ===
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