SOLUTION: Is this argument valid or invalid? Can you help me construct a truth table? Thank you for your help! T v P, P ├ -T

Algebra.Com
Question 980260: Is this argument valid or invalid? Can you help me construct a truth table? Thank you for your help!
T v P, P ├ -T

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
If "T" is a truth value constant (representing True), then ~T is false

The conclusion is always false. The premise T v P is always true because of the "T". The premise P has the possibility of being true if P = T. So as long as P = T, then all premises are true with a false conclusion. So this leads to an invalid argument.

Truth table:

T v PP~T
TTF
TFF

RELATED QUESTIONS

Is this argument valid or invalid? Can you help me construct a truth table? Thank you!... (answered by jim_thompson5910)
What is the truth table for this argument? Is this argument valid or invalid? Thank you... (answered by jim_thompson5910)
What is the truth table for this? Is this valid or invalid? Thank you for your help!... (answered by jim_thompson5910)
I need to make a truth table for this. Is this argument valid or invalid?... (answered by jim_thompson5910)
Please Help. I'm so confused and lost with theese questions. 1. Write a negation of... (answered by amyd62)
determine whether the argument is valid or invalid. You may compare the argument to a... (answered by jim_thompson5910)
Could someone please help me with this truth table? Iam really struggling with this in... (answered by jim_thompson5910)
Could you help me? Construct a truth table for ~ (p v... (answered by vleith)
PLEASE HELP ME~ Construct a truth table for the following ∼(∼p ∨... (answered by jim_thompson5910)