theory Debt_Axiom imports Pure keywords "debt_axiomatization" :: thy_stmt and "discharge_debt_axiom" :: thy_decl and "print_debt_axiom" :: diag and "unspecified_type" :: thy_decl and "specify_type" :: thy_decl and "morphisms" :: quasi_command begin ML_file ‹kernel-sig.ML› ML_file ‹kernel.ML› ― ‹the only kernel, consisting of 30 lines of ML excluding blanks› ML_file ‹Debt_Axiom.ML› end