What is a Mathematical Statement ?

 * A statement that can be judged to be true or false , open sentences . mathematical statements where there is a "variable ".

  Negations - "not "
Always have the opposite truth value add a "not "

In the logic not , we are not going to look at one statement at a time . we are looking at multiple like :

" the president of the united states is Barack Obama and the vice president is joe biden

and ---> both statements must be true for the statement to be true

i am going to have pizza or tacos for dinner.

Conditional -
          conditional is the most frequently used statement in the construction or in the argument of mathematics .

the conditional -
   If it is raning , then it is cloudy

the converse -
   if it is cloudy , then it is raining

the inverse -
       if its not raining , then it is not cloudy

the contrapositive  -
    if its not cloudy then its not raining