- #1
1MileCrash
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https://proofwiki.org/wiki/Intersection_with_Normal_Subgroup_is_Normal
Here is a very fast proof of a well-known theorem.
What is proofwiki taking ":" to mean? I take : to mean "such that", but it doesn't make any sense that way here.
Here is a very fast proof of a well-known theorem.
What is proofwiki taking ":" to mean? I take : to mean "such that", but it doesn't make any sense that way here.