R&W2

• Assertions

  Declarative sentences that claim something is true about something else
• Assertions are either true or false
• Fact

  A statement that can be proven objectively by direct experience, testimonies of witnesses, verified observations, or the results of research
• Convention

  A way in which something is done, similar to traditions and norms. Conventions depend on historical precedent, laws, rules, usage, and customs. Their truthfulness is verified by how commonly held definitions and beliefs are interpreted.
• Opinion

  Based on facts, but difficult to objectively verify because of the uncertainty of producing satisfactory proofs of soundness. Opinions result from ambiguities; the more ambiguous a statement, the more difficult it is to verify.
• Preferences

  Based on personal choice; therefore, it might be subjective and could not be objectively proven or logically attacked.
• Counterclaims

  Claims made to rebut a previous claim. They provide a contrasting perspective to the main argument.
• Evaluative Statement

  A way of giving a better explanation to show the strength and weaknesses of something through writing.