If sandals A and B are exactly similar, with A new and B worn, and B's worn strap is replaced by A's new strap, principle (2) dictates that the resulting sandal is B refurbished

The problem with (2) is this. Pick a simple sort of objects, say, shoes, or better, sandals. Suppose \(A\) and \(B\) are two exactly similar sandals, one of which \((A)\) is brand new and the other \((B)\) is worn out. Each consists of a top strap and a sole, nothing more. If \(B\)’s worn strap is replaced by \(A\)’s new one, (2) dictates that the resulting sandal is \(B\) “refurbished.” In fact, if the parts of \(A\) and \(B\) are simply exchanged, (2) dictates that that the sandal with the new