Dialetheism
(from Greek δι- di- ‘twice’ and ἀλήθεια alḗtheia ‘truth’) is the view that there are statements which are both true and false. More precisely, it is the belief that there can be a true statement whose negation is also true.
What do you call a statement that is both true and false?
In mathematics, two statements that are either both true or both false are said to be
equivalent
. If the two statements are A and B, one might also say A if and only if B, or A iff B for short.
Can two completely opposite statements both be true?
In logic, the law of non-contradiction (LNC) (also known as the law of contradiction, principle of non-contradiction (PNC), or the principle of contradiction) states that
contradictory propositions cannot both be true
in the same sense at the same time, e. g. the two propositions “p is the case” and “p is not the case” …
Does false mean not true?
In Mathematics and Logic, “not true” is often used to describe something which is not always or universally true, while
“false” is more likely to equate to “never true”
.
Do contradictions exist?
In the real world when most people use the word “contradition” to mean there is conflict between two positions.
The contradiction exists until such time as one or both of the positions are proved to be false
.
What is it called when something is either right or wrong?
A false dilemma, also referred to as false dichotomy
, is an informal fallacy based on a premise that erroneously limits what options are available. … False dilemmas are usually discussed in terms of deductive arguments.
What is the word for true or false?
true accurate correct | legal loyal real | reliable responsible sincere | staunch steadfast trustworthy | undoubted upright |
---|
When both statements can be true?
Logical equivalence
occurs when two statements have the same truth value. This means that one statement can be true in its own context, and the second statement can also be true in its own context, they just both have to have the same meaning.
Can two contradictory statements be false?
Contraries
may both be false but cannot both be true
. Contradictories are such that one of them is true if and only if the other is false.
What are contradictions in writing?
A contradiction is
a situation or ideas in opposition to one another
. … A “contradiction in terms” is a common phrase used to describe a statement that contains opposing ideas.
Is false and false true in logic?
In Boolean logic, each variable denotes a truth value which can be either true (1), or false (0). … In both Boolean logic and Classical logic systems, true and false are opposite with respect to negation;
the negation of false gives true
, and the negation of true gives false.
What is the difference between false and untrue?
‘False’ indicates definite, unqualified error; ‘untrue’ suggests that
the statement does not have a unique meaning and cannot be endorsed as it stands
.
Is contradiction always false?
A contradiction is something that
is always false
, regardless of it’s truth values.
Can contradiction be an argument?
Since a contradiction has to be made up by at least one false premise, it can’t be made up of premises that are all true. Therefore it can’t be invalid, so it
must be a valid argument
.
Can laws of logic be broken?
If a law of logic is “broken”,
the law is changed to include the situation in which it broke
. (Most scientific “laws” are like that.
What is true and false philosophy?
It is a fact,
that truth is bound within the domain of concepts
, and hence impossible to be eternal. It is a fact, that anything claimed as “eternal”, cannot be proven to be the case, because eternity does not exist in order to be used in the construction of any logically deductive proof.
What is a word for knowing the difference between right and wrong?
conscience
; scruples; moral sense; sense of right and wrong.
What can I say instead of true?
genuine real | right authentic | actual accurate | exact precise | proper correct |
---|
Is something one accept as true or real?
1.1Something one accepts as true or real;
a firmly held opinion
. ‘I do not suffer fools gladly and I have been known to be opinionated and defend my beliefs strongly. ‘ ‘Human beings are worthy of the highest respect, but not all opinions and beliefs are worthy of respect and tolerance.
What is the meaning of wrong and right?
the details of who or what is fair
or unfair
: I don’t care about the rights and wrongs of the matter – I just want you both to stop arguing. Morality and rules of behaviour. antisocial.
What are 3 synonyms for true?
- accurate,
- authentic,
- exact,
- faithful,
- precise,
- right,
- strict,
- veracious.
Is PQ True or false?
Conditional Propositions – A statement that proposes something is true on the condition that something else is true. For example, “If p then q”* , where p is the hypothesis (antecedent) and q is the conclusion (consequent). This Disjunction is
False
because both propositions are false.
Which statement is always false?
A statement which is always false is called
a contradiction
. For example, p ∧ (¬p) is a contradiction, while p ∨ (¬p) is a tautology.
Are paradoxes true?
Paradoxes do exist
. A paradox is simply two statements which both seem to be true on their own, but appear to be contradictory. Paradoxes can be resolved, but they can also remain and simply show us that our intuition into nature isn’t as solid as once thought.
What is the difference between contradiction and Contrariety?
As nouns the difference between contrariety and contradiction. is that
contrariety is opposition or contrariness
; cross-purposes, marked contrast while contradiction is (uncountable) the act of contradicting.
What is a antinomy paradox?
Antinomy (Greek ἀντί, antí, “against, in opposition to”, and νόμος, nómos, “law”) refers to
a real or apparent mutual incompatibility of two laws
. … A paradox such as “this sentence is false” can also be considered to be an antinomy; for the sentence to be true, it must be false, and vice versa.
Are contradiction and hypocrisy the same thing?
Contradiction is
an unintentional clash between two opposing views
, beliefs or choices. Hypocrisy is a willful, deliberate reversal of a stated position just to benefit the person (people) making the reversal.
Is contradiction and fallacy same?
So, an invalid proposition can be a contingency or a contradiction. A fallacy is
when one has used at least one invalid proposition to reach the conclusion
.
What is tautology and fallacy?
Answer: A Tautology is
any logical statement that always results in True
. … A Fallacy is a statement that always results in False.
Can a person be a contradiction?
contradict Add to list Share. … Often, a person who has lied will later contradict himself by saying something
different
from what he said earlier — and sometimes the two sides contradict each other, and neither is actually right.
What is contradicting evidence?
If two or more facts, ideas, or statements are contradictory,
they state or imply that opposite things are true
.
What is contingency truth table?
A sentence is called a contingency
if its truth table contains at least one ‘T’ and at least one ‘F. ‘
SEE ALSO: Contradiction, Tautology, Truth Table.
Is bool true 1 or 0?
Boolean values and operations
Constant true is 1 and constant false is 0
. It is considered good practice, though, to write true and false in your program for boolean values rather than 1 and 0.
What makes true true?
Anything that is verifiable and repeatable is likely
to be true. If not verifiable and repeatable, then it may well be completely false, or at least partially false. This holds for much more than just religious beliefs.
What is true && true?
10 votes. The && requires that
both items are true
– think of it as having two statements on either side (rather than just true or false itself). The && means, essentially: “Are BOTH of these statements true?” If the answer is yes, then it returns true. in any other case, it returns false.
What does it mean to reappear?
Definition of reappear
intransitive verb. :
to come back into view or show up for a second or subsequent time
: to appear again Darting down the corridor …, she reappeared moments later carrying glasses in filigreed silver holders …—
Can tautologies be false?
In mathematical logic, a tautology (from Greek: ταυτολογία) is a formula or assertion that is true in every possible interpretation. … In logic, a formula is satisfiable if it is true under at least one interpretation, and thus a tautology is a formula whose negation is unsatisfiable. In other words
it cannot be false
.
Are all fallacies invalid?
Originally Answered: Does a fallacy always invalidate an argument?
Yes
, logically a fallacy invalidates the argument, though it’s possible to be presenting multiple arguments at once, and if so it only invalidates the argument that rests on the fallacy.
What is fallacy of wrong assertion?
Proof by assertion, sometimes informally referred to as proof by repeated assertion, is an
informal fallacy in which a proposition is repeatedly restated regardless of contradiction and refutation
. … This fallacy is sometimes used as a form of rhetoric by politicians, or during a debate as a filibuster.