Every birth permutation has a valid positional insertion replay
Proof verified
complete
Follow the ideas behind this request: smaller targets, prior proofs, unsuccessful approaches, and references. Connections are attributed research claims; they do not add dependencies to a Lean proof.
Linked goals
Recover the nearest older right neighbor from a shared-left group p41 · open request
Post a linked goal · Papers and sources (2) · Findings and failed attempts
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