System M (Chellas)

[Chellas, 1980] (See the listing in his index)

Disambiguation This "M" is not to be confused with:


This system is also called EM [Chellas, 1980, p237]

Based on

System M is System E + Axiom M [L(p&q) > (Lp&Lq)]

Or in other words:

[Chellas, 1980, p235]

Basis for

System R is system M (Chellas) + Axiom C [(Lp&Lq) > L(p&q)] [Chellas, 1980, p237]

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