determine if the following is a valid deduction rule: P -> Q -| Q __________ ∴ -|P make a truth table
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determine if the following is a valid deduction rule:
P -> Q
-| Q
__________
∴ -|P
make a truth table for the relevant statements.
Step by step
Solved in 2 steps
- 2a - Determine the weakest precondition for the following sequence of expressions. Pleaseprovide all your work including calculations, logic implications if any applies, and final answer.(10 points){ ? } a = 4 * (3 * b - a); b = 4 * a - 6; { b > 10 }2b - Determine the strongest precondition for the following if-else statement. Please provide allyour work including calculations, logic implications if any applies, and final answer. (15 points){ ? } if (x > y) then y = 2 * x - 1 else y = 3 * x + 1; {y>7}Write PHP statements to accomplish each of the following tasks: a) Declare a variable aCo and bCo and assign 32 to both variables. b) Increment a variable bCo after assigning 32 to the variable. c) Declare a variable average to hold the average value of variables aCo and bCo;Suppose p: 'You get a speeding ticket' and q: 'Your insurance rate goes up.' Select the correct symbolization for the statement 'If your insurance rate doesn't go up then you don't get a speeding ticket'. Choices:a)~p→~q b)cannot be determined c)~q→~p d)~q∧~p
- Explain the purpose and discuss how your coding solution would utilize conditional statements to functionally solve the problem. Please provide two different types of conditional statements.For each of the following questions, write ONLY what is requested. a. Write a statement(s) that prompts for and reads in a temperature. b. Write a statement(s) that displays a 7 × 7 square of asterisks. c. State the rule for identifiers (the naming rule). d. Given that an int variable s has been initialized, write a statement(s) that declares a new variable andassign it the remainder of 9 times 8 less than s divided by 4. e. Write a statement(s) that initializes the variables named a, b, c and d to false, ''one'', 'y' and 87.9respectivelyC++ Language code and explain Zodiac Sign Identifier - Ask the user's birth month and birth day and return the corresponding Zodiac Sign he/she belongs: Evaluate the user's birth month and day by checking the following: If born from, Mar 21 to Apr 19 - Aries Apr 20 to May 20 - Taurus May 21 to Jun 20 - Gemini Jun 21 to Jul 22 - Cancer Jul 23 to Aug 22 - Leo Aug 23 to Sep 22 - Virgo Sep 23 to Oct 22 - Libra Oct 23 to Nov 21 - Scorpio Nov 22 to Dec 21 - Sagittarius Dec 22 to Jan 19 - Capricorn Jan 20 to Feb 18 - Aquarius Feb 19 to Mar 20 - Pisces Example: What is your month of birth? 1 - January (31 days) 2 - February (27 days, if Leap Year 28 days) 3 - March (31 days) 4 - April (30 days) 5 - May (31 days) 6 - June (30 days) 7 - July (31 days) 8 - August (31 days) 9 - September (30 days) 10 - October (31 days) 11 - November (30 days) 12 - December (31 days) Please enter your birth month: 8 Please enter day of your birth: 16 Please enter your year of birth: 1997 Your birthday is every…
- In C++, State if the following variable names are valid or invalid. If it's invalid, state why. Note: invalid here means creating a syntax error. a) 1wayTicket b) employee_pay c) #zombies d) R66Y e) STOP! f) Final ExamLet p, q, and r represent the following statements: p: The first ball is red. q: The second ball is white. r: The third ball is blue. Which would be the correct English statement for the symbolic form (¬¬p ∧∧ q) →→ r ? Group of answer choices A .If the first ball is red or the second ball is white, then the third ball is blue. B. If the first ball is not red or the second ball is white, then the third ball is blue. C .If the first ball is not red and the second ball is white, then the third ball is blue. D. If the first ball is red and the second ball is white, then the third ball is blue.If int x = 10;, int y = 7;, double z = 4.5;, and double w = 2.5;, evaluate each of the following statements, if possible. If it is not possible, state the reason. (3, 4) (x + y) % x x % y + w (z - y) / w (y + z) % x (x % y) * z x % y % 2 (x + y) % z (x % y + z) / w
- What is the numeric value of each of the following expressions, as evaluated by the C# programming language? 2+5*3 9/4+10 10/3 2110 (51)*3 37/5 648 5+2*43*4 3*(2+5)/5 2852 19/2/2 28/(2+4)(JAVA)A set of if statements can do the same job as a switchstatement. What is a good reason to choose one over the other? Group of answer choices 1. Choose a switch statement when you have more than two cases for a single variable. If your conditions depend on the interaction between multiple variables use if statements. 2. All options are correct. 3. Proper coding conventions suggest that using if statements is preferable. 4. Choosing a switch statement when your conditions involve integers, and if statements if your conditions involve doubles. 5. Proper coding conventions suggest that if statements are leftover from older programming languages, and modern code should use switch statements.Arithmetic and Logical Operators: Evaluate each of the following statements as True or False. Show intermediate steps for full credit. Try by simplifying only one operator at a time if the whole expression is dicult to understand. (SEE PHOTO) ______________________________________________________________________________ English to Logic (Lawn) Express each sentence using logical operations :, ^, _ and the propositional variables r; s; and l dened below. The use of the word "or" in the sentences below always means inclusive or. r it is raining l the lawn is wet s the sprinkler is on i) It is raining and the lawn is wet ii) It is not raining but the lawn is wet iii) The lawn is not wet and it is not raining iv) There is no way that it is raining v) It is raining or the sprinklers are on vi) Despite the fact that it is raining, the sprinklers are on Consider the eclectic animal collection at the local zoo. Express each sentence using logical operations and the propositional…
