jesperez530
jesperez530 jesperez530
  • 04-01-2018
  • Mathematics
contestada

Is (p∨q)∨(q→p) a tautology, contradiction, or neither?

Respuesta :

wizard123
wizard123 wizard123
  • 04-01-2018
Make a truth table, let A = pVq,  B =q->p

p     q        A       B       AVB
0      0       0       1         1
0      1       1       0         1
1      0       1       1        1
1      1       1       1        1

Since it is True for every possible state of p and q, then it is a tautology.
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