Assume that a procedure is formalized as a Turing machine that can be represented as a...

Assume that a procedure is formalized as a Turing machine that can be represented as a finite length string from a finite alphabet. Thus any string over this alphabet is a Turing machine. Is the set of all Turing machines countable? Explain. Give an effective enumeration of all Turing machines (that is, show a “procedure” that will list all Turing machines).

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venereology answered 9 months ago

Explain how a Turing Machine can simulate an arbitrary DFA. Use a 2-tape Turing Machine. It...

Explain how a Turing Machine can simulate an arbitrary DFA. Use a 2-tape Turing Machine. It can be done with a 1-Tape Turing Machine, but 2-tape will likely make the explanation more intuitive.

What is a Turing Machine? Be able to describe its parts. Given a Turing Machine description,...

What is a Turing Machine? Be able to describe its parts. Given a Turing Machine description, be able to carry out a computation and show the resultant tape. What is the halting problem? Is the halting problem decidable? What is Hoare Logic? When proving a program correct, we must look at the initial assertion and final assertion. What are these? What is a loop invariant?

Question ::: A Forgetful Turing Machine (FTM) operates just like a normal Turing Machine except that,...

Question ::: A Forgetful Turing Machine (FTM) operates just like a normal Turing Machine except that, in every instruction (it, transition) the letter written in the tape cell is always the letter 'a', regard less of the current state and the current letter (although the read/write head is still allowed to move either Left or Right, according to the instruction). What class of the languages is recognised by FTMs? Justify the answer. Could u explain why it is regular language?

prove or disprove A Turing machine with two tapes is no more powerful than a Turing...

prove or disprove A Turing machine with two tapes is no more powerful than a Turing machine with one tape. (That is, both types of machines can compute the same set of functions.) The cardinality of the set of irrational numbers is greater than the cardinality of the set of all rational numbers. The cardinality of the set of all algebraic numbers is exactly the same as the cardinality of all real numbers.

Turing Machine and Closure Operations Show that Turing-recognizable languages are closed under the following operations: union...

Turing Machine and Closure Operations Show that Turing-recognizable languages are closed under the following operations: union concatenation star Each answer needs only be a short informal description of a Turing Machine (but it must still be sufficiently precise so someone could reconstruct a formal machine if needed). Also, be careful with non-termination (when appropriate)!

Turing Machine and Closure Operations Show that Turing-decidable languages are closed under the following operations: union...

Turing Machine and Closure Operations Show that Turing-decidable languages are closed under the following operations: union concatenation star

Assume a firm is perfectly competitive. Assume a firm's toatal cost curve can be represented as...

Assume a firm is perfectly competitive. Assume a firm's toatal cost curve can be represented as follows: TC= 10+ 4q + 2q^2 Assume the market price for this good is $100 per unit. A. What is the profit maximizing level of output for this firm? B. At the profit maximizing level of output, how much economic profit is this firm earning? C. At this profit maximizing level of output what is ATC?, AVC?, AFC? D. At what output is...

Can you give me a turing machine for the language c* n b2n a n+2 for...

Can you give me a turing machine for the language c* n b*2n a* n+2 for n>=0 . Please give the entire diagram with states, transition function, alphabet. Can use either one-tape or two-tape (both infinite). Describe the logic used to build the machine. Run the TM that accepts for any string of length > 1. Also run for string cbba.

If you have a Turing machine with a tape that is not just linear at each...

If you have a Turing machine with a tape that is not just linear at each move, instead you have the ability to move up, down, left, or right. There is a single read/write head. The transition function looks like. The tape extends up and right infinitely. That is, you can never go left or down of where you start, but you can go infinitely up and to the right. Is this machine equivalent to the standard Turing machine model?...

Devise a Turing machine to check the correct nesting of brackets (parentheses). So, your machine should...

Devise a Turing machine to check the correct nesting of brackets (parentheses). So, your machine should start with a tape with something like (()()(())) on it and halt with T printed on the tape, and it should start with something like (()()(() on the tape and halt with F. That is, correctly nested strings of brackets should give T, and wrongly nested strings of brackets should give the answer F. This example is important since it shows that Turing machines...

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