Current library: Alpha v34, 4,223 checked-use theorems; Stable remains 432. Historical first admissions, original proof editions, and non-admitted aliases are preserved. Exact original first-admission records.
Readable signature
SuccessorInverse(m,i,j)Exact expansion
exists dp_u dp_v. (S i) * S j + m * dp_u = 1 + m * dp_vThis node is notation, not a theorem, axiom, predicate constant, or kernel rule. The elaboration layer must expand it before proof checking.