-- Maclain Hunter: Logic, Logical Reasoning, Forms, and Applications -- Exact authored source SHA-256: 9584dbd358008d2f84163e5dbb7659e2d49eba11368534b47f5a076d322f73ff -- Machine formalization by Replit Agent; authority below Logic/Logos/God. import Lean namespace HunterAuthored theorem inference_2 (v0 v1 : Bool) : ((!((v0 && ((!v0) || v1)) && ((!v1) || v0))) || (v0 && v1)) = true := by cases v0 <;> cases v1 <;> decide #print axioms inference_2 theorem source_identity_rule (α : Type) (a : α) : a = a := rfl #print axioms source_identity_rule end HunterAuthored