Explaining the Problem of Color Exclusion From the Perspective of Structural Necessity in the Tractatus

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Hejazian Fatemeh; Sadeghi Reza; Karbasizade Amir Ehsan

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Journal Paper

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Journal: Shinakht Year:2025 | Volume:18 | Issue:1 Page(s): 9-32

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Information Journal Paper

Title

Explaining the Problem of Color Exclusion From the Perspective of Structural Necessity in the Tractatus

Author(s)

Hejazian Fatemeh | Sadeghi Reza | Karbasizade Amir Ehsan | Issue Writer Certificate

Keywords

Color Exclusion

Structural Necessity

Tautological Necessity

States of Affairs

Essence of Objects

Abstract

This paper examines the problem of color exclusion in Wittgenstein’s Tractatus Logico-Philosophicus. Wittgenstein asserts in this work that there is only one kind of necessity, namely, logical necessity. However, the problem of color exclusion—meaning that two colors cannot simultaneously occupy the same point in space—poses a serious challenge to this view; for, on the one hand, the conjunction of two color propositions (for example, "point A is red" and "point A is green") appears to be impossible, and on the other hand, this impossibility does not seem to constitute a logical contradiction. Various solutions have been proposed to resolve this challenge. This paper critically analyzes the proposed solutions and introduces the concept of "structural necessity"—a necessity arising from the limits and combinatorial possibilities of objects. It then, in light of this concept, seeks to articulate a type of logical necessity distinct from tautology and to demonstrate how this explanation can provide an appropriate response to the problem of color exclusion.

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