Deductive-Reasoning
Question 1 |
A deductive argument is invalid if:
Its premises and conclusion are all false | |
Its premises are all false but its conclusion is true | |
Its premises are all true but its conclusion is false | |
Its premises and conclusion are all true |
Question 1 Explanation:
A deductive argument is the presentation of statements that are assumed (or) known to be true as premises for a conclusion that necessarily follows from the statements.
Question 2 |
Given below are some characteristics of reasoning. Select the code that states a characteristic which is not of deductive reasoning:
The conclusion must be based on observation and experiment. | |
The conclusion should be supported by the premise/premises. | |
The conclusion must follow from the premise/premises necessarily. | |
The argument may be valid or invalid. |
Question 2 Explanation:
Deductive reasoning is the presentation of statements that are assumed (or) known to be true as premises for a conclusion that necessarily followed by the statements.
Question 3 |
Select the code, which is not correct in the context of deductive argument with two premises:
An argument with one true premise, one false premise and a false conclusion may be valid. | |
An argument with two true premises and a false conclusion may be valid. | |
An argument with one true premise, one false premise and a false conclusion may be valid. | |
An argument with two false premises and a false conclusion may be valid. |
Question 4 |
A deductive argument is invalid if:
Its premises and conclusions are all true | |
Its premises and conclusions are all false | |
Its premises are true but its conclusion is false | |
Its premises are false but its conclusion is true |
Question 4 Explanation:
In deductive arguments if premises are true then the conclusion is also true.
There are 4 questions to complete.