Logic is easily misunderstood, especially relevant logic. Thus the philosopher Peter Geach deplores the current preoccupation with "inconsistent" logic that are non-trivial and yet inconsistent). But what use are these, anyway? And, as for entailment , the concept is well-developed and well-established. Why meddle with it? ;In this work, we do not meddle with logical consequence. Instead, we develop a group of well-behaved logics that are conforming; i.e. that conform to the Boolean Order of Things, according to which a contradiction (...) is the very worst, whereas a logical truth is the very best. These systems are relevant, however, in that they reject modus ponens. Each admits Ackermann's rule ). (shrink)

The relevance logic presented in this paper is the result of an attempt to nd a natural deduction development, in the style of I. M. Copi , for the relevance logic I presented in \A Three-Valued Interpretation for a Relevance Logic".