>>>>>>So, what are your predictions?
>>>>>>
>>>>>>

? .f. or .t. or .f. and .f. or .f.
>>>>>>? .f. or .f. or .t. and .f. or .f.

>>>>>
>>>>>True and False
>>>>
>>>>We reasoned from left to right.
>>>>
>>>>Our initial reasoning for the 1st one was:
>>>>step 1) false or true = true
>>>>step 2) true or false = true
>>>>step 3) true and false = false
>>>>step 4) false or false = FALSE
>>>>
>>>>Our initial reasoning for the 2nd one was:
>>>>step 1) false or false = false
>>>>step 2) false or true = true
>>>>step 3) true and false = false
>>>>step 4) false or false = FALSE
>>>>
>>>>We now know we were wrong and why. But does anybody here (except Sergey, who obviously appears to know why) know why?
>>>
>>>Only if we would read if right to left.
>>
>>What do you mean?
>
>If you read your first expression from the right to the left applying your reasoning you get TRUE. But we know it's wrong from Gregory's answer.

Ah, ingenious. :)