Element of justification in contemporary epistemology

The definition of propositional knowledge has been said to be: "knowledge is belief in justified truth" and belief, truth, and justified are necessary and adequate conditions in the actualization of knowledge.  Many faults have been directed towards this three elemental definition, which some of them have been derived from the element of justification. This article reviews some of the most important ambiguities regarding the element of justification and refers to subjective and objective theories related to justification.                                                                                                                 Key Words: Justification – Theories of Justification – Subjective theories – Objective theories – epistemological Justification – Foundationalism – coherence theory – Propositional Knowledge.