Abstract: Using the symbol calculus developed by Berezin, Krée and Rączka, it is shown that the algebra generated by the canonical commutation relation (CCR) is splitted into creation part and annhilation part with holomorphic and anti-bolomorphic symbols respectively. Further. in the Weyl representation of CCR, three Weyl operators will constitute an irreducible set of the fall CCR-algebra if some number theoretic conditions are satisfied.

Key words: CCR, symbol calculus, Weyl operators, irreducible set