If the proposition 'All men are not mortal' is true then which of the following inferences is correct ? Choose from the code given below :1. 'All men are mortal' is true.2. 'Some men are mortal' is false.3. 'No men are mortal' is doubtful.4. 'All men are mortal' is false. Codes :

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If the proposition 'All men are not mortal' is true then which of the following inferences is correct ? Choose from the code given below :<br />1. 'All men are mortal' is true.<br />2. 'Some men are mortal' is false.<br />3. 'No men are mortal' is doubtful.<br />4. 'All men are mortal' is false. Codes :