The husk and stray are counted as sub-variants of existing mobs as opposed to entirely new mobs, hence why you are unable to simply type /summon Stray or /summon Husk. There was supposed to be spawn eggs for them, but it seems they were removed either intentionally or by accident in the final release.
Axiomatic method, in logic, a procedure by which an entire system (e.g., a science) is generated in accordance with specified rules by logical deduction from certain basic propositions (axioms or postulates), which in turn are constructed from a few terms taken as primitive.
Socratic method - Method. 1  Elenchus (Ancient Greek: á¼Î»ÎµÎ³ÏÎ¿Ï elengkhos argument of disproof or refutation; cross-examining, testing, scrutiny esp. for purposes of refutation [3]) is the central technique of the Socratic method.