Assumption vs. Claim: Know the Difference
By Shumaila Saeed || Updated on December 25, 2023
Assumption is an accepted fact or statement taken for granted without proof. Claim is a statement asserting something to be true, often requiring justification or proof.
Key Differences
An assumption is a premise that is accepted as true without concrete evidence. It serves as a foundation for reasoning or argument but isn't directly proven. Conversely, a claim is a statement that asserts a belief or opinion and often requires evidence or argument to be seen as valid. Both play crucial roles in constructing arguments, with assumptions acting as the unstated basis and claims as the propositions that need substantiation.
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Assumptions are often implicit and underlie the basis of a statement or argument. They are the starting points that are accepted without question. Claims, on the other hand, are explicit assertions made by someone, which are often subject to challenge and require backing. While assumptions are the bedrock of reasoning, providing a foundation, claims are the building blocks that are visible and scrutinized.
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In the process of argumentation, assumptions are the unexamined beliefs that form the background of any claim. They can be seen as the context in which claims are made. Claims, however, are the specific statements that are put forward to be examined, debated, or proven. They stand at the forefront of discussion, while assumptions quietly underpin the logic or belief system.
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Assumptions are often general and broad, forming a framework within which specific claims can be made and tested. They are usually not contested within the context of a particular discussion, whereas claims are the focus of contention, debate, or agreement. In essence, assumptions provide the unseen soil in which the visible plant of a claim grows and is nourished.
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Comparison Chart
Basis of Formation
Often based on general belief or accepted wisdom
Based on specific statements or arguments
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Requirement of Proof
Typically accepted without proof
Requires justification or evidence
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Role in Argument
Underlying premise that is not usually stated
Main point that is stated and argued
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Function in Discourse
Provides a foundational context
Acts as a proposition to be proven or disproven
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Assumption and Claim Definitions
Assumption
A belief taken as true without proof.
The assumption that all swans are white was disproven by the discovery of black swans.
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Claim
A statement asserting the truth of something.
She made a claim that she had seen a UFO.
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Assumption
An underlying premise in reasoning.
His argument relies on the assumption that everyone wants to be wealthy.
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Claim
To demand, ask for, or take as one's own or one's due
Claim a reward.
Claim one's luggage at the airport carousel.
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Assumption
A thing that is accepted as likely to happen without question.
Her plan is based on the assumption that the train will be on time.
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Claim
To take in a violent manner as if by right
A hurricane that claimed two lives.
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Assumption
An initial setting or condition in a problem.
The mathematician made an assumption about the value of x to simplify the equation.
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Claim
To state to be true, especially when open to question; assert or maintain
Claimed he had won the race.
A candidate claiming many supporters.
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Assumption
The act of taking to or upon oneself
Assumption of an obligation.
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Assumption
The act of taking possession or asserting a claim
Assumption of command.
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Assumption
Something taken for granted or accepted as true without proof; a supposition
A valid assumption.
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Claim
Something claimed in a formal or legal manner, especially a tract of public land staked out by a miner or homesteader.
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Claim
A demand for payment in accordance with an insurance policy or other formal arrangement.
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Assumption
Assumption(Christianity)The taking up of the Virgin Mary into heaven in body and soul after her death, observed as a feast on August 15.
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Claim
A statement of something as a fact; an assertion of truth
Makes no claim to be a cure.
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Assumption
The act of assuming, or taking to or upon oneself; the act of taking up or adopting.
His assumption of secretarial duties was timely.
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Claim
A demand of ownership made for something.
A claim of ownership
A claim of victory
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Assumption
The act of taking for granted, or supposing a thing without proof; a supposition; an unwarrantable claim.
Their assumption of his guilt disqualified them from jury duty.
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Assumption
The thing supposed; a postulate, or proposition assumed; a supposition.
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Claim
The right or ground of demanding.
You don't have any claim on my time, since I'm no longer your employee.
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Assumption
(logic) The minor or second proposition in a categorical syllogism.
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Claim
A new statement of something one believes to be the truth, usually when the statement has yet to be verified or without valid evidence provided.
The company's share price dropped amid claims of accounting fraud.
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Claim
A demand of ownership for previously unowned land.
Miners had to stake their claims during the gold rush.
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Assumption
A festival in honor of the ascent of the Virgin Mary into heaven, celebrated on 15 August.
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Assumption
The act of assuming, or taking to or upon one's self; the act of taking up or adopting.
The assumption of authority.
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Claim
To state a new fact, typically without providing evidence to prove it is true.
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Assumption
The act of taking for granted, or supposing a thing without proof; supposition; unwarrantable claim.
This gives no sanction to the unwarrantable assumption that the soul sleeps from the period of death to the resurrection of the body.
That calm assumption of the virtues.
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Assumption
The thing supposed; a postulate, or proposition assumed; a supposition.
Hold! says the Stoic; your assumption's wrong.
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Claim
(intransitive) To be entitled to anything; to deduce a right or title; to have a claim.
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Claim
To cause the loss of, usually by violent means.
The attacks claimed the lives of five people.
A fire claimed two homes.
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Assumption
A statement that is assumed to be true and from which a conclusion can be drawn;
On the assumption that he has been injured we can infer that he will not to play
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Assumption
A hypothesis that is taken for granted;
Any society is built upon certain assumptions
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Assumption
The act of taking possession of or power over something;
His assumption of office coincided with the trouble in Cuba
The Nazi assumption of power in 1934
He acquired all the company's assets for ten million dollars and the assumption of the company's debts
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Claim
To ask for, or seek to obtain, by virtue of authority, right, or supposed right; to challenge as a right; to demand as due.
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Assumption
Celebration in the Roman Catholic Church of the Virgin Mary's being taken up into heaven when her earthly life ended; corresponds to the Dormition in the Eastern Orthodox church
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Assumption
Audacious (even arrogant) behavior that you have no right to;
He despised them for their presumptuousness
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Assumption
(Christianity) the taking up of the body and soul of the Virgin Mary when her earthly life had ended
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Assumption
The act of assuming or taking for granted;
Your assumption that I would agree was unwarranted
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Claim
To be entitled to anything; to deduce a right or title; to have a claim.
We must know how the first ruler, from whom any one claims, came by his authority.
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Assumption
A taking on of responsibility or role.
His assumption of leadership was unexpected by many.
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Claim
A demand of a right or supposed right; a calling on another for something due or supposed to be due; an assertion of a right or fact.
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Claim
A right to claim or demand something; a title to any debt, privilege, or other thing in possession of another; also, a title to anything which another should give or concede to, or confer on, the claimant.
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Claim
The thing claimed or demanded; that (as land) to which any one intends to establish a right; ; as, a settler's claim; a miner's claim.
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Claim
An assertion of a right (as to money or property);
His claim asked for damages
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Claim
An assertion that something is true or factual;
His claim that he was innocent
Evidence contradicted the government's claims
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Claim
Demand for something as rightful or due;
They struck in support of their claim for a shorter work day
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Claim
An informal right to something;
His claim on her attentions
His title to fame
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Claim
An established or recognized right;
A strong legal claim to the property
He had no documents confirming his title to his father's estate
He staked his claim
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Claim
Assert or affirm strongly; state to be true or existing;
He claimed that he killed the burglar
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Claim
Demand as being one's due or property; assert one's right or title to;
He claimed his suitcases at the airline counter
Mr. Smith claims special tax exemptions because he is a foreign resident
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Claim
Ask for legally or make a legal claim to, as of debts, for example;
They claimed on the maximum allowable amount
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Claim
Take as an undesirable consequence of some event or state of affairs;
The accident claimed three lives
The hard work took its toll on her
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Claim
A demand for something as a right.
The workers put forth a claim for higher wages.
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Claim
An assertion in the face of possible contradiction.
His claim that he could outrun a cheetah was met with skepticism.
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Claim
A statement intended to persuade or convince.
The advertisement makes a claim about the product’s effectiveness.
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Repeatedly Asked Queries
What makes a good claim in an argument?
A good claim is clear, specific, and backed by evidence.
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How do assumptions affect arguments?
They form the underlying basis which, if flawed, can weaken the argument.
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How do you identify an assumption?
By looking for underlying beliefs or premises that are not explicitly stated.
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What is the difference between a fact and a claim?
A fact is an indisputable truth, while a claim is a statement that requires proof.
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Are assumptions always true?
Not necessarily; they are accepted as true within the context of the argument.
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Why are assumptions important in analysis?
They provide a starting point for reasoning and analysis.
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Can a claim be an assumption?
No, a claim is a stated assertion, while an assumption is an unstated premise.
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Are assumptions always explicit?
No, they are often implicit and taken for granted.
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What is an assumption in argument?
An unstated premise or belief taken for granted in reasoning.
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How does one challenge a claim?
By presenting counterarguments or evidence.
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Are assumptions necessary in scientific research?
Yes, they provide a starting point for hypotheses and theories.
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Can a claim be proven wrong?
Yes, if there is sufficient contradictory evidence.
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Can assumptions lead to misconceptions?
Yes, if they are unchecked and not based on fact.
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Why is it important to understand assumptions in communication?
To fully grasp the context and underlying meanings of the discussion.
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Is it possible to have an argument without assumptions?
Practically, no, as assumptions form the basis of most arguments.
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Are all assumptions unreasonable?
No, some are reasonable based on common knowledge or experience.
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What role does evidence play in supporting a claim?
Evidence substantiates a claim, making it more credible.
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How can one verify a claim?
Through research, experimentation, or presenting factual evidence.
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Can a claim change over time?
Yes, as new evidence or information emerges, claims can be modified.
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About Author
Written by
Shumaila SaeedShumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.
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