material logic for me is such as making argument for because his own need or maybe because they have an interest
formal is just study of logic with purely formal content and material is the branch of logic that focuses the content of reasoning.
Fenoxycarb, a carbamate insecticide that has the attribute material (relating to matter and physical things)
1+1=2, a man is a human, the dog barks.
Classical Logic allows two truth values, True and False. Multivalued or "many-valued logic" allows other kinds of truth values and it allows there to be more than two truth values.