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Is it true that if a language a is regular and language b reduces to a, then language b is also regular?
No, it is not necessarily true that if language A is regular and language B reduces to A, then language B is also regular.
Is it true that a context-free language is a subset of a regular language?
Yes, it is true that a context-free language is a superset of a regular language.
How can the keyword "pumping lemma" be used to prove that a language is regular?
The keyword "pumping lemma" can be used to prove that a language is regular by showing that any sufficiently long string in the language can be divided into parts that can be repeated or "pumped" to create more strings in the language. If this property holds true for a language, it indicates that the language is regular.
Is it true that if a language is undecidable, then it must be infinite?
Yes, it is true that if a language is undecidable, then it must be infinite.
Is it true that all DFA is decidable?
No, not all deterministic finite automata (DFA) are decidable. Some DFAs may lead to undecidable problems or situations.
Is it true that if a language a is regular and language b reduces to a, then language b is also regular?
No, it is not necessarily true that if language A is regular and language B reduces to A, then language B is also regular.
Is it true that a context-free language is a subset of a regular language?
Yes, it is true that a context-free language is a superset of a regular language.
Every regular polygon has reflectional symmetry?
true
Does the Catholic church believe that there are only a finite number of souls?
Every human being born on this planet has a soul. So the number always remains a finite number. So the belief is true.
How can the keyword "pumping lemma" be used to prove that a language is regular?
The keyword "pumping lemma" can be used to prove that a language is regular by showing that any sufficiently long string in the language can be divided into parts that can be repeated or "pumped" to create more strings in the language. If this property holds true for a language, it indicates that the language is regular.
Why finite angular displacement is not a true vector?
No no its a true vector for infinite angular displacement
Let f be a function with a finite domain The graph of f is necessarily made up of a finite number of points?
true
Is it true that numbers never end?
There are an infinite number of numbers. So there is no such thing as "the biggest number in the world". For every (finite) number you can find one bigger than it.
A line segment has only length and no width true or false?
It is true. A line segment has finite length but no width.
Why finite angular displacement is not a vector?
No no its a true vector for infinite angular displacement
Does every hexagon have 6 obtuse angles true or false?
It's very difficult to answer a yes/no question with 'true' or 'false'.A regular hexagon has 6 obtuse interior angles.A hexagon that's not regular can have fewer than 6 .
Is Z with the discrete topology a compact topological space?
A discrete topology on the integers, Z, is defined by letting every subset of Z be open If that is true then Z is a discrete topological space and it is equipped with a discrete topology. Now is it compact? We know that a discrete space is compact if and only if it is finite. Clearly Z is not finite, so the answer is no. If you picked a finite field such a Z7 ( integers mod 7) then the answer would be yes.
