1.
           | 
           In 
            each of the following, say whether the second sentence is an acceptable 
            translation of the first. (If it isn't, think of situation in which 
            the sentences would have different truth-values.)  | 
        
         
          |   | 
          (i) 
              | 
          John 
            was happy if Liverpool won the cup. [Liverpool won the cup ® 
            John was happy]. | 
        
         
          |   | 
          (ii) | 
           
             
            John doesn't know if Liverpool won the cup. [Liverpool won the cup 
            ® John doesn't know]. | 
        
         
          |   | 
          (iii) 
             | 
          You 
            won't succeed without trying. [¬you will try ® ¬you will succeed]. | 
        
         
          |   | 
          (iv) 
             
             | 
           
            You will succeed only if you try. [you will try ® you will succeed]. | 
        
         
          |   | 
          (v) 
             | 
          You 
            won't succeed unless you try. [¬you will try ® ¬you will succeed]. 
             | 
        
         
          |   | 
          (vi) 
             | 
           
            If my mother telephones, I shall be in the garden. [My mother will 
            telephone ® I shall be in 
            the garden].  | 
        
         
          |   | 
          (vii) | 
          If 
            that egg has been boiled for ten minutes, it is hard. [That egg has 
            been boiled for ten minutes ® 
            that egg is hard]. | 
        
         
          |   | 
          (viii)  | 
          If 
            an egg has been boiled for ten minutes, it is hard. [An egg has been 
            boiled for ten minutes ® 
            an egg is hard]. | 
        
         
          |   | 
          (ix) 
             | 
          If 
            that egg had been boiled for ten minutes, it would have been soft. 
            [That egg was boiled for ten minutes ® that egg was soft]. |