IT235 Discrete Structure

Discrete StructureTU Board 2023

Give an example of fallacy.

1

Answer

Example of Fallacy:

One common fallacy is the affirming the consequent (logical fallacy of affirming the consequent). This occurs when someone incorrectly assumes that if the conclusion of a conditional statement is true, then the premise must also be true.

Example:

  • Premise: If it rains, the ground will be wet.
  • Conclusion: The ground is wet.
  • Fallacious reasoning: Therefore, it must have rained.

This is incorrect because the ground could also be wet due to other reasons (e.g., sprinklers, a leak). The correct logical structure requires the premise to be true for the conclusion to hold.

Another example is the false dilemma (either/or fallacy):

  • "Either you support the government’s policies, or you are against democracy." This ignores the possibility of alternative viewpoints or policies.

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