Development of Logic as Science and Main Directions of Modern Symbolical Logic

Short data from history classical and nonclassical the logician
. Development of logic in connection with a problem of justification of mathematics
. Intuitionistic logic
. Constructive logicians
. Multiple-valued logicians
. Laws excluded the third and not contradictions in nonclassical logicians (multiple-valued, intuitionistic, constructive)
. Modal logicians
. Positive logicians. Paraconsistent logic