逻辑题：Determine whether each of this argument is valid .
逻辑题：Determine whether each of this argument is valid .
Determine whether each of this argument is valid .If an argument is correct ,what rule of inference is being used If it is not ,what logical error occurs?
The number㏒23 is irrational if it is not the ratio of two integers .Therefore ,since ㏒23 cannot be written in the form a/b where a and b are integers ,it is irrational .
Determine whether each of this argument is valid .If an argument is correct ,what rule of inference is being used If it is not ,what logical error occurs?
The number㏒23 is irrational if it is not the ratio of two integers .Therefore ,since ㏒23 cannot be written in the form a/b where a and b are integers ,it is irrational .
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This argument is incorrect.The statement “log23 cannot be written in the form a/b where a and b are integers” occurs in the proof.No argument has been given to show that log23 cannot be written in the form a/b where a and b are integers.This is circular reasoning because this statement is equivalent to the statement being proved,namely,“The number log23 is irrational”.
同志,我猜你是信工软件班的我的某个同学,另外我严重怀疑你和我都是某位绵姓同志的同桌
同志,我猜你是信工软件班的我的某个同学,另外我严重怀疑你和我都是某位绵姓同志的同桌
1年前
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