regressive probation
Rare term, likely from legal or correctional contexts, referring to a probationary period that moves backward or is reduced. The exact usage is obscure; it may appear in specialized documents.
The term 後退的論証 can sometimes be seen in specialized legal texts.
Compound of 後退的 (regressive) and 論証 (proof, argumentation). The exact derivation is uncertain; it appears to be a technical coinage.