| notion(noun, concept, understanding, philosophy, rule) |
| nucleus(noun, support, action, base, beginning) |
| outlook(noun, concept, understanding, philosophy, plan) |
| philosopheme |
| philosophical proposition |
| philosophy(understanding, plan, position, system, belief) |
| plan(understanding, position, system, belief, model) |
| principal element(noun, expression, support, action, base) |
| proof(noun, support, action, base, beginning) |
| propositional function |
| query(noun, topic) |
| rationale(understanding, plan, position, system, belief) |
| reason(noun, support, action, base, suggestion) |
| recipe |
| rock bottom(expression, law, foundation, basic, stipulation) |
| root(noun, support, action, base, beginning) |
| rudiment(noun, law, support, action, base) |
| sanction(noun, support, action, base, beginning) |
| scheme(understanding, plan, position, system, belief) |
| scholium(noun, maxim) |