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<font size="3">&#9758;</font> This page belongs to resource collections on [[Logic Live|Logic]] and [[Inquiry Live|Inquiry]].

<font size="3">&#9758;</font> This page belongs to resource collections on [[Logic Live|Logic]] and [[Inquiry Live|Inquiry]].

A '''logical graph''' is a [[graph theory|graph-theoretic]] structure in one of the systems of graphical syntax that [[Charles Sanders Peirce]] developed for logic.

A '''logical graph''' is a [[graph theory|graph-theoretic]] structure in one of the systems of graphical syntax that [[Charles Sanders Peirce]] developed for [[logic]].

In his papers on ''[[qualitative logic]]'', ''[[entitative graph]]s'', and ''[[existential graph]]s'', Peirce developed several versions of a graphical formalism, or a graph-theoretic formal language, designed to be interpreted for logic.

In his papers on ''[[qualitative logic]]'', ''[[entitative graph]]s'', and ''[[existential graph]]s'', Peirce developed several versions of a graphical formalism, or a graph-theoretic formal language, designed to be interpreted for logic.