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~ - correct answer ✔Negation
. - correct answer ✔Conjunction
V - correct answer ✔Disjunction
= - correct answer ✔Equivalence
≠ - correct answer ✔Inequality
> - correct answer ✔Implication
≡ - correct answer ✔Biconditional (if and only if)
:. - correct answer ✔Conclusion
Three Laws of Thought - correct answer ✔The Law of Identity (A=A)
The Law of Excluded Middle (A v~ A)
The Law of Non-Contradiction (A >~~ A)
3 (or 4) Elements of an Argument - correct answer ✔1. Premises: the
propositions from which the conclusion follows
, 2. Conclusion: the proposition that follows from the premises
3. Entailment / Interference: the relationship between the premises and the
conclusion by which the conclusion can be said to follow the premises
Deduction - correct answer ✔An argument where in the premises logically
entail the conclusion
3 (or 4) Types of Deductive Syllogisms - correct answer ✔1. Categorical
Syllogism
2. Disjunctive Syllogism
3. Hypothetical Syllogism
3a. Two valid forms of hypothetical syllogisms
3b. Two formal fallacies of mixed hypothetical syllogisms
Categorical Syllogism - correct answer ✔States things in terms of categories
E.x. all of you are students (A=B)
Disjunctive Syllogism - correct answer ✔- If one side isn't true, the other
must be true
- Affirming a disjunction is a fallacy
Hypothetical Syllogism - correct answer ✔Contains a conditional proposition
(if then)
Two valid forms of mixed hypothetical syllogisms - correct answer ✔1.
Affirming the antecedent: A > Y, X :. Y
2. Denying the consequent: X > Y, ~Y :. ~X