Definition

In logic, a statement that can be true at the same time as another statement, but both cannot be false at the same time.

Example

In a logical argument, the two subcontrary propositions can coexist without contradiction.

Conversation

I was reading about logic, and I came across the term subcontrary.

Oh, really? What does that mean exactly?

It refers to propositions that can both be true, but not both false at the same time.

That sounds interesting! I love learning new concepts like that.

Synonyms & Antonyms

Root Explanation

Subcontrary → It is formed from "sub-" (meaning under) and "contrarius" (meaning opposite). The term describes a relationship where two propositions can both be true, but are opposites in a certain context, hence one is under the other in terms of logical structure.

Memory Tip

Think of something that is 'under' ('sub-') an 'opposite' ('contrarius') — this helps you remember that 'subcontrary' refers to a relationship where two opposing ideas can coexist.

Visually Confused Words