Define deductive reasoning, and introduce the laws of logic (Law of Detachment: If p→q is a true conditional and p is true, then q is true. Law of Syllogism: If p→q is a true conditional, and q→r is a true conditional, then p→r is a true conditional).
Provide several examples using the law of detachment and the law of syllogism.
Provide some examples that demonstrate how to make arguments using deductive reasoning.
Provide examples of converse, inverse and contrapositive of "if-then" statements.
This packet should help a learner seeking to understand deductive reasoning.
This video defines deductive reasoning and explains the law of Syllogism, which states that if P implies Q and Q implies R, then P implies R.
Source: Salman Khan on Guaranteach
This video introduces the Law of Detachment and the Law of Syllogism more formally, showing how they're used to form logical statements.
This video provides a number of examples that demonstrate how the laws of logic are applied.
This video demonstrates how to make arguments using deductive reasoning.
This video provides examples of converse, inverse and contrapositives of "if-then" statements.
Free Professional Development