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DEFINITION & FRAMEWORK

We take critical thinking to be the intentional process of identifying, analyzing, evaluating, and constructing reasoning in deciding what conclusions to draw or actions to take. As such, it encompasses a wide variety of activities, including argumentation, decision making, and problem solving, and is encouraged by habits of mind like curiosity, confidence, intellectual humility, and persistence.
 

Glossary

TermsConcept
ArgumentA unit of reasoning that attempts to establish the truth of a claim by citing other claims as evidence.
ExplanationA unit of reasoning that takes for granted that something is the case and attempts to account for why it is the case.
Claim Assertion PropositionAn assertion that is either true or false (although we might not know which it is).
Inference SupportThe relationship between one claim (or set of claims) C1 and another claim C2 such that the truth of C1 makes the truth of C2 more likely than not.
Conclusion Contention Claim (In Toulmin)A claim that is supported by other claims.
Reason PremiseA claim that is being used to support other claims.
Premise AssumptionA claim that is taken for granted and used to support other claims.
Subconclusion Intermediate StepA claim that is both being used to support other claims and is supported by other claims.
Main Conclusion
Ultimate Conclusion
Thesis
Position
Hypothesis (in the sciences)
A claim that is supported by other claims and that does not, itself, support other claims.
Dependent Reasons
Co-premises
Two or more claims that must be accepted simultaneously in order to support another idea.
Independent ReasonsTwo or more claims, each of which could support another idea on its own.
ObjectionThe relationship between one claim (or set of claims) C1 and another claim C2 such that the truth of C1 makes the truth of C2 less likely.
RebuttalAn objection to an objection