elemental theory of logic, we can believe

Elemental theory of logic, we can believe

point :

[1] we use logic to certificate theory True or False
[2] if logic is not common Truth, we cant share outcome of certification
[3] then we cant doubt logic, that use to certificate True or False

what kind of logic & meaning, that use to certificate True or False ?

[1] if (hypothesis) 
[2] True & false 
[3] And, or, in our certification 
[4] then 

we can trust [1][2][3][4] = Elemental theory of logic,
because we cant deny logic
if logic not exist, we can not certificate theory.