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Deltahedron (talk | contribs) →Statement: correct |
Deltahedron (talk | contribs) →Statement: extension, identifying subgroup as stabiliser |
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:<math> |A+B| \ge |A+H| + |B+H| - |H| . </math>
The subgroup ''H'' can be taken to be the ''stabiliser'' of ''A''+''B''
:<math> H = \lbrace g \in G : g + (A+B) = (A+B) \rbrace . </math>
==References==
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