Contrapositive

Quran•Logical Proof Method

Method Overview

Prove "If not B then not A" instead of "If A then B".

Logical Structure

(¬B → ¬A) ↔ (A → B)

Proof Description

If Quran were man-made, it would contain contradictions (it does not).

Logical Framework

¬Divine → Contradictions; ¬Contradictions → Divine

Proof Steps

The contrapositive: if the Quran is not divine, it must contain contradictions—every human text of comparable length and complexity does. Verse 4:82 explicitly invites this test: "Do they not reflect upon the Quran? If it had been from other than Allah, they would have found within it much contradiction." After 1400 years of hostile scrutiny, no genuine contradiction has been found. By contrapositive logic, the Quran must be divine.

Detailed Explanation

This is proof by contrapositive: instead of proving "divine → no contradictions," we prove the equivalent "contradictions → not divine" and observe the absence of contradictions.

This proof demonstrates the logical foundations of Islamic beliefs through rigorous philosophical methodology.

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