theorem (n.)

• affirmation
• assertion
• assumption
• axiom
• basis
• conjecture
• data
• deduction
• dictate
• dictum
• formula
• foundation
• fundamental
• ground
• hypothesis
• law
• lemma
• position
• postulate
• postulation
• premise
• presupposition
• principle
• proposition
• rule
• statement
• sumption
• supposal
• thesis
• truism
• truth