The Micro-Philosopher

The Micro-Philosopher

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Being And Time: Week 7 Guide

Division One, Part One, Chapters II & III, Sections 12-14

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Paul Musso, PhD
May 01, 2026
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Suggested Reading & Overview

  • It is suggested to read sections 12, 13, and 14 for this week.

    • We will continue our study of section 12 from last week where Heidegger commences his analysis of Dasein’s existence and then proceed to his discussion of “the world” which starts in section 14 of Chapter III.

  • Heidegger undertakes two primary tasks in Chapter II (sections 12, 13).

    • 1) to describe the ontological significance of what it means to-be-in-the-world.

    • 2) to show that this existential is a priori, and discuss what this entails.

  • One of the main points that Heidegger argues for is that being-in-the-world must be understood ontologically rather than ontically.

The First Existential: Being-In-The-World

  • Last time, we spent a good amount of time discussing the concept of “existential structures”.

  • The first “existential” (what appears in your text as existentialia) is “being-in-the-world”.

    • Heidegger analyzes this existential in different stages. Last time we looked at “being-in” and discussed how a pl…

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