Abnormal normalizer not implies pronormal
From Groupprops
This article gives the statement and possibly, proof, of a non-implication relation between two subgroup properties. That is, it states that every subgroup satisfying the first subgroup property (i.e., subgroup with abnormal normalizer) need not satisfy the second subgroup property (i.e., pronormal subgroup)
View a complete list of subgroup property non-implications | View a complete list of subgroup property implications
Get more facts about subgroup with abnormal normalizer|Get more facts about pronormal subgroup
EXPLORE EXAMPLES YOURSELF: View examples of subgroups satisfying property subgroup with abnormal normalizer but not pronormal subgroup|View examples of subgroups satisfying property subgroup with abnormal normalizer and pronormal subgroup
Statement
A subgroup whose normalizer is an abnormal subgroup need not be pronormal.
Facts used
Proof
The proof follows directly by combining facts (1) and (2).