rocedure we used assumed that wffs were preprocessed to remove the → operator (among others). Add tableau rules t
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The tableau procedure we used assumed that wffs were preprocessed to remove the → operator (among others). Add tableau rules to support →
Step 1: The tableau procedure we used assumed that wffs were preprocessed to remove the → operator (among others). Add tableau rules to support →
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- Please show the steps for the below questionWhat is the important precondition for stringCopy to work? Explain why the precondition is necessary.Define a Prolog predicate project/3 that selects elements from a list by their position and collects them in a result list. For example, the goal of project( [2,4],[a,b,c,d],L) should produce the answer L=[b,d]. You can assume that the numbers in the first list are strictly increasing, that is, your implementation does not have to care about situations like project([1,1,2],..) or project([2,5,3],.).
- Develop a system/application in Prolog that will allow grader to: load a set of student’s grades (see samples from the Table C below) query student’s final letter grade (A, B, C, etc.) by a given student’s name. query student(s) whose grade matches to the input letter grade (e.g., A). For example, show student(s) whose final letter grade is A. There are 3 types of grades for each student—HWs, Exams, and Project, with a weight of 20%, 40% and 40%, respectively, to the 100-point final. Table A and B show how the final grades (in points and letter) are computed. Table C shows samples of students’ grades. You will define the execution instructions to answer the following questions so that grader can test out your application in Prolog: how to load your source code to Prolog runtime/compiler how to load students’ grades to Prolog runtime/compiler how to query student’s letter grade how to query student(s) whose letter grade matches to an input letter grade Please DO NOT hard code any…The language used here is in Racket. Please explain what is the code doing and the meaning of each line. (define (union a b)(cond ((null? b) a)((member (car b) a)(union a (cdr b)))(else (union (cons (car b) a) (cdr b)))))(union '(1 2 3) '(3 2 1))(union '(1 2 3) '(3 4 5))(union '(a b c) '(3 2 1))What's a complex structure? A. It's an morphism of V that squares to the minus identity B. It's an metamorphism of V that squares to the minus identity C. It's an automorphism of V that squares to the minus identity D. It's an automorphism of Q that squares to the minus identity
- Suppose you have a list of key/value pairs (i.e., a nested list where each element of the list is a (key value)pair. For example, the list might look like this: '((France Paris) (France Nice) (Spain Madrid) (Poland Krakow) (Poland Warsaw)) (Notice that the keys need not be unique for this problem.) Write a function named first-occurrence in Scheme that takes a key and a list then returns the value of the first item on the list with a matching key. Return '() if none of items on the list has a matching key. You must use either fold or reduce to do the vast majority of the work. You may use the built-in foldmethod by adding the line (require 'list-lib), or you can use your own implementation. The built-in fold function has parameters in this order: action partial-result lst. You may assume that the list contains an element with the key to be updated. For example, (first-occurrence 'Germany '((France Paris) (Germany Bonn) (Germany Berlin))) should return 'Bonn (first-occurrence 'Poland…Implement a complete class in c ++ code that represents a priority queue. The gender must contain the operations enqueue and dequeue, with the usual semantics.Indicate the complexity of all operations with motivation.Generate a unique regular expression. You regular expression must have all three operators for regular languages (union, concatenation, Kleene star). The using the construction method outlined in Kleene's theorem part 1, convert your regular expression into an NFA. Be sure that the NFA retains the structural elements of the conversion of each of the operators (with the exception of the elimination of null transitions between the concatenation of single symbol NFAs)
- In using, lists as sets, we wish to judge the list (a b c) and (b c a) as equal because they contain the same elements. Also, we wish to judge sets that contain sets, such as ( a (b c d) e), to be equal to ( e a (c d b)). Implement a scheme predicate called set-equal? that takes as input two lists representing sets and returns true if the lists represent the same set and false otherwise. The difference between this predicate and the one discussed in detail in class is that this predicate will support sets of sets to any degree of nesting, e.g., sets of sets of sets. Thus, the call (set-equal? ‘(a (b (c d))) ‘( ((d c) b) a)))) should return #t and the call (set-equal? ‘(a (b (c d))) ‘( (d c b) a)))) should return #f. Racket code only please. No loops or hash.how you would add the symbol "-" minus to the alphabet of the LR parsing table means "HOW" you would do it , what would you use as a template? How would you walk through the process and would you have to add to the grammar as well? if so, what would you add?Write a BNF grammar describing the syntax of BNF; i.e., define the syntax of BNF itself using BNF. Use a pair of single quotes to use meta symbols like | and -> as terminal symbols, e.g., '|' and '->'. You may assume that non-terminals such as <identifier> and <special-symbol> are already defined.