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feat(Foundations): factorial truncation of cutoff corrections - #1677

Merged

SamuelSchlesinger merged 10 commits into

cslib-community:mainfrom

chris-ai1:feat/factorial-truncation-1444

Oct 30, 2026

Merged

feat(Foundations): factorial truncation of cutoff corrections#1677
SamuelSchlesinger merged 10 commits into
cslib-community:mainfrom
chris-ai1:feat/factorial-truncation-1444

Commits on Oct 29, 2026
- feat(Foundations): correction factorization and reward transport for transition matrices
  
  chris-ai1
  and
  claude
  committed
  7085d68
- fix(Foundations): expose IsStrictUpperTriangular so importers can apply it
  
  chris-ai1
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  claude
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  832f939
- fix(Foundations): separate row-sum control from nonnegativity; add reward lower bound
  
  chris-ai1
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  claude
  committed
  1fbc267
- feat(Foundations): factorial truncation of cutoff corrections
  
  chris-ai1
  and
  claude
  committed
  b5cc059
- refactor(Foundations): use Nat.sum_Icc_choose for the hockey-stick step
  
  chris-ai1
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  claude
  committed
  6e0388d
- doc(Foundations): count chains with the integer support size
  
  chris-ai1
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  claude
  committed
  8b3f572
Commits on Oct 30, 2026
- Merge supported main into correction hierarchy
  SamuelSchlesinger
  committed
  6392301
- fix(Foundations): qualify Matrix apply lemmas for the rc2 Mathlib API
  
  authored and
  SamuelSchlesinger
  committed
  4014d0c
- Merge supported correction parent into factorial truncation
  SamuelSchlesinger
  committed
  a6e69b7
- fix(Foundations): qualify Matrix apply lemmas in FactorialTruncation for rc2
  
  authored and
  SamuelSchlesinger
  committed
  b0b0005