👉 In mathematics, a "discursive" or "discursive construct" is an argument that uses arguments from one's own beliefs to support claims about other people's beliefs. For example: "The sun rises in the east." This is a discursive argument because it relies on the fact that the sun rises in the east. The speaker is using their belief in the existence of the sun to assert that this is true, and they are then using this belief to support their claim that the sun will rise