前提

1. Origins, structure, and basic meaning

• Structure: 前提 is a noun read ぜんてい for a premise or assumption on which reasoning, a plan, or discussion rests.
• Basic usage: It states a condition underlying a plan or identifies shared assumptions before a discussion begins.
  • この計画は全員が参加できることを前提にしています。 makes everyone's ability to participate a premise of the plan; 議論を始める前に、共通の前提を確認しましょう。 proposes confirming shared premises before discussion.

2. Common pitfalls and similar expressions

• ことを前提にする
  • こと nominalizes the clause and を marks its content as the premise. This does not necessarily establish that the content has already occurred as fact.
• 前提を確認する
  • This means checking whether participants share the same conditions or assumptions before starting the discussion.
• 前提 and 条件
  • 条件(じょうけん) broadly denotes a condition for an outcome or choice, while 前提 focuses on what is accepted first as the basis of reasoning, planning, or discussion.