It seems like you are mostly talking about cardinality, or proofs of problems pe...

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asa123 56 days ago | parent | context | favorite | on: More than half of adults in U.S. say they lack bas...

It seems like you are mostly talking about cardinality, or proofs of problems pertaining to them, and the person you are responding to is saying they struggle with combinatorics

rawgabbit 56 days ago [–]

Yes, you're probably right.