An argument is invalid if and only if all the premises is true and the conclusion is false.
We can test the invalidity of the argument by assuming all the premises are true and seeing whether it is possible for the conclusion to be false. If the conclusion is possible to be false, then, the argument is invalid.
A valid argument, on the other hand, is valid if and only if it is necessary that:
1) if all of the premises are true, then the conclusion is true
2) if all of the premises are true, then the conclusion must be true
3) it is impossible that all the premises are true and the conclusion is false.
Answer:
what? i mean same but okay
An egg so answer D , the others don’t make sense
Answer:
For me I wish someone had taught me that getting along with people well is actually far more important than being superb at your job. I saw it 1000 times that the easier-going person got promoted and the more determined workaholic who really knew their stuff were passed over. I never learned how to small talk.
I was told several times that college is the most important time of a person’s life and that the relationships made then are crucially important down the line. I spent far too much time becoming an outstanding student/MD and far too little time complimenting the nurses and administrators, etc., always willing to linger for small talk even if patients were waiting on me. It took a long time for me to realize that no one cared how expert I was as long as I completed the minimum necessary work, and the patients’ outcomes were of scarce importance to them.
Now with internet access it’s much easier to maintain relationships, although the substance seems much shallower than a handwritten snail mail letter from generations ago when literacy was really valued and letters were creative.
I’ve never spent time arguing since it always seemed pointless to me. I was right. I think of the thousands of arguments I've witnessed over the years and the nonsense I put up with with so many combative personalities. If only I knew then that people cannot communicate properly when arguing so it’s a complete waste of time for everyone. I decided many years ago to never sit through such nonsense and simply say “let’s table this until everyone is calm” and then I exit.
Explanation: