Can thor defeat thanos without infinity stones?

The available data only indicates that the Infinity Stones are essential artifacts in the Marvel Cinematic Universe, each controlling a fundamental aspect of existence. Thanos seeks to collect all six stones to carry out his plan of wiping out half of all life, which he believes will save the universe. Thor is a well-known character in the MCU, but the provided sources do not describe any direct combat between Thor and Thanos that occurs without the influence of the Infinity Stones. Consequently, based solely on the verified evidence, we cannot confirm that Thor could defeat Thanos in the absence of those stones.