trureturingGitHub MATHEMATICAL ATLAS

PrimeForms / CONCEPT

The Square-Root-21 Pell Tower

The norm-one fundamental unit preserves the Pell conic of discriminant 21.

Closed Authored exposition
DIRECT PREREQUISITES0
DIRECT CONSEQUENCES1
PROOF DEPTH0
DOCUMENT LINKS1
THEOREM

The fundamental-unit orbit preserves the Pell equation

RELATIONSHIP ATLAS

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Direct recorded relationships
The Square-Root-21 Pell TowerThe Square-Root-21 Pell TowerLocal Periodicity of Pell RecurrencesLocal Periodicity of PellRecurrences
Proof dependencyStructural affinityDocument link

Certified topology / UPSTREAM

Prerequisites

None recorded in this release.

Certified topology / DOWNSTREAM

Consequences

RELATED KNOWLEDGE

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None recorded in this release.

LIBRARY / RELEASE VERSIONS

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Certified provenance

Exact release coordinate

Lean sourceResearch workspace
Status
Closed
Depth
0
Layer
D5/S3
Domain
PrimeForms
Node ID
D5/S3/PrimeForms/PellFamilies/SqrtTwentyOnePellTower
Repository path
D5/S3/PrimeForms/PellFamilies/SqrtTwentyOnePellTower.lean
Truth release
sha256:c0d04258d27972c1cf58485e21d64dbcbe336405346ba95133913c64ba2856aa
Source commit
745bf90812f7175f83e1235688249f9495f23bfc
Source tree
143bc6c9ab9054c406f0cdd7f3b296eb38768b5c

Authority boundary

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.