The Critique of Pure Reason, Section III summary
Section III of 79 · Part 2: Transcendental Logic · 12 min to read the section
In Section III, the speaker explains how imagination synthesizes representations and understanding gives that synthesis unity through twelve categories derived from the functions of judgment. The argument presents these categories as a complete system, explains their internal relations, and distinguishes them from derived concepts and logical criteria such as unity, truth, and perfection.
What happens
- The speaker distinguishes general logic from transcendental logic and defines synthesis as joining representations into one cognition.
- Imagination supplies synthesis, while understanding provides the concepts that give it the unity required for cognition.
- The speaker derives twelve categories from judgment, arranging them under quantity, quality, relation, and modality.
- He contrasts this systematic arrangement with Aristotle’s catalogue and distinguishes basic categories from their derived concepts.
- He divides the categories into mathematical and dynamical groups, explains their triads, and connects community with disjunctive judgment.
- He argues that unity, truth, and perfection are logical criteria for cognition, not additional categories.
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In this section
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Why does the third category in each triad remain a basic concept?
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“The Critique of Pure Reason, Section III summary.” Library of Alexandria, 2026, libraryofalexandria.com/pages/the-critique-of-pure-reason-section-3-summary.
Library of Alexandria. (2026). The Critique of Pure Reason, Section III summary. https://libraryofalexandria.com/pages/the-critique-of-pure-reason-section-3-summary
“The Critique of Pure Reason, Section III summary.” Library of Alexandria, 2026. https://libraryofalexandria.com/pages/the-critique-of-pure-reason-section-3-summary.
@misc{the_critique_of_pure_reason_section_3_summary_2026,
title = {The Critique of Pure Reason, Section III summary},
publisher = {Library of Alexandria},
year = {2026},
url = {https://libraryofalexandria.com/pages/the-critique-of-pure-reason-section-3-summary}
}
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