PD0036 · conservative definition

InverseIndex

i and j are bounded zero-based modular inverse indices.

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

InverseIndex(m,l,i,j)

Exact expansion

((exists dp_left_gap. dp_left_gap + S i = l) /\ ((exists dp_right_gap. dp_right_gap + S j = l) /\ (exists dp_u dp_v. (S i) * S j + m * dp_u = 1 + m * dp_v)))

This node is notation, not a theorem, axiom, predicate constant, or kernel rule. The elaboration layer must expand it before proof checking.

Definition neighborhood

Expands using

Used by definitions

Used by theorem statements or local proof propositions