Heritability of K\H{o}nig's Property from finite edge sets

Abstract

A hypergraph $H = (V,E)$ is said to have K\H{o}nig's Property if there is a matching $M\subseteq E$ and $S\subseteq V$ such that $|S \cap e| = 1$ for all $e\in M$, and $S$ is a vertex cover of $H$. Aharoni posed the question whether K\H{o}nig's Property is inheritable from finite subsets of $E$. We provide a negative answer and investigate similar questions for weaker properties.