This viewpoint is curdling rapidly. The definition of "reasoning" and "intelligence" will be debated for ages by philosophers and cognitive scientists, but whatever type of logical/critical thinking is going on in the heads of software engineers and mathematicians, frontier LLMs can now emulate to a very high degree. For mathematics in particular, examples like the following will become common place:
https://gowers.wordpress.com/2026/05/08/a-recent-experience-...