Project-declaredLean 4.31.0
Psi bijective
ArkLib.Lattices.CyclotomicModulus.psi_bijective
Plain-language statement
Ļ is bijective (Hachi [NOZ26, §3, Theorem 2]): injective (from the non-degenerate trace pairing, psi_injective) and a cardinality match |(R_q^H)^{d/k}| = (q^k)^{d/k} = q^d = |R_q|.
cryptographyproof systemscoding theory
Source project: ArkLib
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