postulation

/ˌpɑstʃəˈleɪʃən/
noun
  1. The act of suggesting or assuming something as true, especially as a basis for reasoning or argument.
    • The theory begins with the postulation that all people are born with equal rights.
    • The scientist's postulation that the planet had water was later confirmed by the rover.
    • Her postulation about the cause of the error helped the team find a solution.
  2. A formal request or demand, especially in a religious or legal context.
    • The lawyer filed a postulation for a new trial based on new evidence.
    • The community made a postulation to the bishop for a new church building.
    • The postulation for the saint's canonization was submitted to the Vatican.