Tutors Answer Your Questions about Proofs (FREE)
Question 194154: I started with:
(P v ~P)
I have gotten to this point:
~(P v ~P) Assumption
...
(P v ~P)
_|_ (falsum)I 1,2
(P v ~P) ~E 3
I don't know where to go from there? divide and then there is your answer
Click here to see answer by chewyben(1) |
Question 194331: Please help me with this problem for proofs:
1. A-> ~(B ->G)
2. A v G / A<-> ~G
I'm thinking there will be some Hypothetical syllogism to find the conclusion. I am really bad at this thought, so I am uncertain. Please help me! I really appreciate it. Thank you!
Click here to see answer by jim_thompson5910(35256) |
Question 195915: Concerned about Friday absenteeism, management examined absenteeism rates for the last three Fridays in four assembly plants. Does this sample prove that there is a significant difference in treatment means? Absences
Month Plant 1 Plant 2 Plant 3 Plant 4
4-Mar 19 18 27 22
11-Mar 22 20 32 27
18-Mar 20 16 28 26
Click here to see answer by stanbon(75887) |
Question 198757: 3. Write the following compound statement in symbolic form
Let p: Today is Friday.
q: Tomorrow is not the day to go shopping.
If tomorrow is not the day to go shopping, then today is not Friday.
4. Construct a truth table for ~ (p Ù q)
5. Write the converse, inverse, and contrapositive of the following conditional statement
If the sun is shining, then it will not rain.
Click here to see answer by jim_thompson5910(35256) |
Question 217826: If a, b are elements of the REAL numbers and a+b=0, then a= -b.
I am having trouble with the steps, I kinda of know what types of axioms I need to use. Inverse and DEF. of Subtraction are some of those.
Click here to see answer by drj(1380)  |
Question 232431: I need help solving this logics problem, Pleas help!!
If Osami is in either Afganistan or Pakistan, then he is in hiding. But if Osama is alive, then he will soon release another video tape and the tape will include a criticism of America. So, if Osama is in Afganistan then his is in hiding, and if he is alive the he will soon release another video tape. (Use the following letters: A,P,H,L,R,C)
Click here to see answer by solver91311(24713)  |
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