Deductive-Reasoning
Question 1 |
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 1 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 2 |
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 3 |
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 3 Explanation:
In deductive arguments if premises are true then the conclusion is also true.
Question 4 |
Which one among the following is not a characteristic of a deductive type of argument?
The conclusion follows from the premise/premises necessarily. | |
The argument admits degree of complexity. | |
The argument provides us knowledge about matters of fact. | |
The argument must be either valid or invalid. |
Question 4 Explanation:
A deductive argument is an argument that is intended by the arguer to be deductively valid that is to provide a guarantee of the truth of the conclusion provided that the argument's premises are true.