---
title: "Proof marker mathematical notation"
description: "Proof marker is a recurring research-paper notation family. Marks the beginning of an argument intended to establish a preceding theorem, lemma, or…"
canonical_url: "https://fanout.sh/labs/math-decoder/symbol/proof-marker"
md_url: "https://fanout.sh/labs/math-decoder/symbol/proof-marker.md"
last_updated: "2026-08-09"
access: "public"
---

# Proof marker mathematical notation

Proof marker is a recurring research-paper notation family. Marks the beginning of an argument intended to establish a preceding theorem, lemma, or…

## Public overview

Proof marker is a recurring research-paper notation family. Marks the beginning of an argument intended to establish a preceding theorem, lemma, or proposition.

Proof marker: Marks the beginning of an argument intended to establish a preceding theorem, lemma, or proposition. Example: The formal justification begins by taking P as an available premise.

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