A more thorough explanation:

Definition: Dianatic is an archaic term that refers to a form of logical reasoning that proceeds from one subject to another. It is also known as dianoetic, which is the correct term.

Example: If someone is using dianoetic reasoning, they might start by discussing the topic of climate change and then move on to the related subject of renewable energy sources. This type of reasoning involves exploring different ideas and concepts that are connected to each other.

The example illustrates how dianoetic reasoning works by showing how one topic leads to another. It is a way of thinking that involves making connections between different ideas and exploring them in depth.