trureturingGitHub MATHEMATICAL ATLAS

Factorization / CONCEPT

The Quotient Universal Property of the Ideal Class Group

A group homomorphism on invertible fractional ideals that is trivial on every principal ideal descends uniquely through the canonical class-group map.

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THEOREM

Principal-trivial homomorphisms factor uniquely through ideal classes

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The Quotient Universal Property of the Ideal Class GroupThe Quotient Universal Propertyof the Ideal Class Group
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Lean sourceResearch workspace
Status
Closed
Depth
0
Layer
D5/S3
Domain
Factorization
Node ID
D5/S3/Factorization/IdealClassGroups/ClassGroupQuotientUniversality
Repository path
D5/S3/Factorization/IdealClassGroups/ClassGroupQuotientUniversality.lean
Truth release
sha256:c0d04258d27972c1cf58485e21d64dbcbe336405346ba95133913c64ba2856aa
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745bf90812f7175f83e1235688249f9495f23bfc
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143bc6c9ab9054c406f0cdd7f3b296eb38768b5c

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Dependency edges, status, and source coordinates come from the verified release and certified topology. Blueprint exposition is labeled separately. A fallback title carries no additional mathematical authority.