Asked by Lisa
Which argument is not valid?
1.) Given: a→b
a
Conclusion: b
2.) Given: a˅b
~b
Conclusion: ~a
3.) Given: a→b
~b
Conclusion: ~a
4.) Given: a→b
b→~c
Conclusion: a→~c
1.) Given: a→b
a
Conclusion: b
2.) Given: a˅b
~b
Conclusion: ~a
3.) Given: a→b
~b
Conclusion: ~a
4.) Given: a→b
b→~c
Conclusion: a→~c
Answers
Answered by
Steve
#2 is not an argument, since there is no implication.
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