yes there is , first u need to assume all ur premesis are true then after that u can find the truth value of each then u gonna go to the conclusion and insert the truth value that u got . if it yield true its valid if it yields false then its invalid.
That was really helpful, thanks to u!! but I couldn't understand neither the falsity of the 3rd row (the 1st example)🤔nor the whole second example especially with the final answer column. can someone plz explain that for me 😵
for the first example p, the third row of p is false, hence the conclusion will also be false, invalidating the entire argument. its same for the second example where the last row of g is false, so the conclusion g will also be false, invalidating the entire argument. for truth tables, if there is one row that is false, it invalidates everything even though there are rows wherein the conclusion is true. everything has to be true so that the entire argument can be valid. hope this helps!!
The second argument could be expressed like this g=> not r and not r therfore g then you could say that the structure of the argument is the same as in a hence argument b is invalid
