...
-2 Some statements alone = No valid conclusion
-1 All statement ... in the necessary condition = No valid conclusion
-1 Most ... and 1 Some statement = No valid conclusion
You ... can also draw a valid conclusion with a "some" ...
... for this argument to be valid, though. It's impossible for ... .g. modus ponens is a valid inference rule and 1+1 ... number of assumptions in every valid argument, and each proposition will ...
Are you referring to one of these?
https://7sage.com/lesson/invalid-argument-forms
https://7sage.com/lesson/two-step-test-for-flawdescriptive-weakening-questions