- Relation of Ideas
A

**Relation of Ideas**, in the Humean sense, is the type of knowledge that can be characterized as arising out of pure conceptual thought and logical operations (in contrast to aMatter of Fact ). In a Kantian philosophy, it is equivalent to theanalytic a priori. It is also closely coincident with the so-called Truths of Reason ofLeibniz , which are defined as those statements whose denials are self-contradictory.**Examples:**Mathematics: 8 x 10 = 80 Logic/Definitions: All islands are surrounded by water (by definition)**How We Know:**

-We can demonstrate these truths

-Denying these will lead to a logic contradiction

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