Chpt 3: Forlax Truth Tables

Question 1

Negation

Answer 1

It is not the case that… (sideways L)

Question 2

A truth table

Answer 2

Table that shows all the possible combinations of ones and zeros for the various letters in a given argument

Question 3

Atomic sentence

Answer 3

What you call a sentence that is represented by a letter (like in truth tables)

Question 4

Compound sentence

Answer 4

The sentence (conclusion) you get when you string together atomic sentences (premises)

Question 5

Conjunction

Answer 5

The ‘and’ in this ‘and’ that

As in: (A&B)

Question 6

(Truth Table) Tautology

Answer 6

What you call a sentence that has a ‘one’ under the connective in EVERY ROW of its truth table

Sentence is considered true as a matter of logic

Question 7

(Truth Table) contradiction

Answer 7

What you call a sentence that has a ‘zero’ under the connective in EVERY ROW of its truth table

Question 8

(Truth table) Contingent

Answer 8

What you call a sentence that is neither a tautology nor a contradiction according to its truth table

Question 9

Logical equivilance

Answer 9

What you call it when two sentences have the same ‘truth value’ for their truth tables

Question 10

COnditional

Answer 10

If then, then that

A arrow B

Question 11

Biconditional

Answer 11

This if, and only if that

A double headed arrow B

Question 12

Logically consistent (truth table)

Answer 12

Has at least one line that indicates the sentence/conclusion is true

Question 13

Inconsistent (truth table)

Answer 13

A truth table doesn’t have at least one line where the atomic sentences are all true

Question 14

Valid (truth table)

Answer 14

What you call it when a truth table has no instances where the rows are all ones but the conclusion is zero (or vice versa)

Question 15

Disjunction

Answer 15

The ‘or’ in this or that

Given by V symbol as in Terel V Traci