確定決定之條件 Conditions for Irrevocable Decision

就確定事實以確定要件所為之決定當然確定。	A decision is irrevocable if made according to definite requirements and based on definite facts.
決定不確定者，蓋事實不確定或要件不確定。	A decision is revocable only if made according to indefinite requirements, or based on indefinite facts.
事實不確定為外顯不完備。	An indefinite fact is an explicit incompleteness.
要件不確定為內涵不完備。	An indefinite requirement is an implicit incompleteness.
不確定但可確定者為相對不確定，可構造性證明之。	An indefiniteness which is possible to become definite is a relative indefiniteness, which can be shown by a constructive proof.
不確定且不可確定者為絕對不確定，僅可存在性證明之。	An indefiniteness which is impossible to become definite is an absolute indefiniteness, which can only be shown by an existence proof.