-- Maclain Hunter: Nested Structure by Maclain Hunter -- Exact authored source SHA-256: d7afa529455ee6e3132d061dd4b9bee152e9925171931709a91b55e986e5dcc2 -- Machine formalization by Replit Agent; authority below Logic/Logos/God. import Lean namespace HunterAuthored theorem source_identity_rule (α : Type) (a : α) : a = a := rfl #print axioms source_identity_rule end HunterAuthored