English Language Learners Definition of contradiction : the act of saying something that is opposite or very different in meaning to something else. : a difference or disagreement between two things which means that both cannot be true.
What is a contradiction in writing?
Contradiction is to say that something a person has said or written or expressed is wrong or false or incorrect and that the opposite is true. Thus it means denial of a statement. It pleads for opposite instance. Mutually opposed or inconsistent events contradict each other.
What is a contradiction in logic?
In traditional logic, a contradiction occurs when a proposition conflicts either with itself or established fact. It is a proposition that is unconditionally false (i.e., a self-contradictory proposition). This can be generalized to a collection of propositions, which is then said to “contain” a contradiction.
What does not a contradiction mean?
noun. The lack or absence of contradiction, especially as a principle of logic that a proposition and its opposite cannot both be true.
What does contradict mean in simple terms?
to assert the contrary of
1 : to assert the contrary of : take issue with contradict a rumor She contradicted her brother’s account of what happened. 2 : to imply the opposite or a denial of Your actions contradict your words. The evidence contradicts his testimony.
How do you use contradiction?
The steps taken for a proof by contradiction (also called indirect proof) are:
- Assume the opposite of your conclusion.
- Use the assumption to derive new consequences until one is the opposite of your premise.
- Conclude that the assumption must be false and that its opposite (your original conclusion) must be true.
What is an example of contradictory?
A contradictory statement is one that says two things that cannot both be true. An example: My sister is jealous of me because I’m an only child. Contradictory is related to the verb contradict, which means to say or do the opposite, and contrary, which means to take an opposite view.
What are some examples of contradict?
The definition of contradict is to say or write the opposite of something. An example of contradict is for a teenager to say he was at the library last night at 8 p.m for four hours., but then to later mention that the movie he saw last night was great.
How do you explain proof by contradiction?
To prove something by contradiction, we assume that what we want to prove is not true, and then show that the consequences of this are not possible. That is, the consequences contradict either what we have just assumed, or something we already know to be true (or, indeed, both) – we call this a contradiction.
What is self contradictory?
adjective. If you say or write something that is self-contradictory, you make two statements which cannot both be true. He is notorious for making unexpected, often self-contradictory, comments.
What is contradict example?
1 : to assert the contrary of : take issue with contradict a rumor She contradicted her brother’s account of what happened. 2 : to imply the opposite or a denial of Your actions contradict your words. The evidence contradicts his testimony.
What is an example of a logical contradiction?
A logical contradiction is a contradiction IN logic. For example, irrationality (The opposite of logic) or paradoxes (competing logics) can be considered logical contradictions. It is argued they are more contradictory than logical, or they become living contradictions regardless of logic.
What are examples of contradictory sentences?
Examples of Contradictory in a sentence. The contradictory law makes no sense because it outlaws the act in one part and allows it in another. 🔊. Though she claims to love her husband, the woman’s contradictory actions show otherwise. 🔊. The suspect gave a contradictory statement that was later proven to be false in court.
What is contradiction in logic?
In classical logic, a contradiction consists of a logical incompatibility between two or more propositions. It occurs when the propositions, taken together, yield two conclusions which form the logical, usually opposite inversions of each other.
