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Main Authors: Kovács, Zoltán, Peng, Xicheng
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2511.14728
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author Kovács, Zoltán
Peng, Xicheng
author_facet Kovács, Zoltán
Peng, Xicheng
contents We improve the complex number identity proving method to a fully automated procedure, based on elimination ideals. By using declarative equations or rewriting each real-relational hypothesis $h_i$ to $h_i-r_i$, and the thesis $t$ to $t-r$, clearing the denominators and introducing an extra expression with a slack variable, we eliminate all free and relational point variables. From the obtained ideal $I$ in $\mathbb{Q}[r,r_1,r_2,\ldots]$ we can find a conclusive result. It plays an important role that if $r_1,r_2,\ldots$ are real, $r$ must also be real if there is a linear polynomial $p(r)\in I$, unless division by zero occurs when expressing $r$. Our results are presented in Mathematica, Maple and in a new version of the Giac computer algebra system. Finally, we present a prototype of the automated procedure in an experimental version of the dynamic geometry software GeoGebra.
format Preprint
id arxiv_https___arxiv_org_abs_2511_14728
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Automated proving in planar geometry based on the complex number identity method and elimination
Kovács, Zoltán
Peng, Xicheng
Computational Geometry
Artificial Intelligence
We improve the complex number identity proving method to a fully automated procedure, based on elimination ideals. By using declarative equations or rewriting each real-relational hypothesis $h_i$ to $h_i-r_i$, and the thesis $t$ to $t-r$, clearing the denominators and introducing an extra expression with a slack variable, we eliminate all free and relational point variables. From the obtained ideal $I$ in $\mathbb{Q}[r,r_1,r_2,\ldots]$ we can find a conclusive result. It plays an important role that if $r_1,r_2,\ldots$ are real, $r$ must also be real if there is a linear polynomial $p(r)\in I$, unless division by zero occurs when expressing $r$. Our results are presented in Mathematica, Maple and in a new version of the Giac computer algebra system. Finally, we present a prototype of the automated procedure in an experimental version of the dynamic geometry software GeoGebra.
title Automated proving in planar geometry based on the complex number identity method and elimination
topic Computational Geometry
Artificial Intelligence
url https://arxiv.org/abs/2511.14728