Here, we show that the problem of the unwanted minus sign typically (perhaps always) results from a misunderstanding of the language of calculus. When one adheres to a simple and fundamental rule of calculus notation, the derivation of the rocket equation becomes straightforward, and no unwanted...
Then use the rule (2.2): the –5– NS-NS pin structure q(x) = 0, q(y) = 0 becomes the NS-R pin structure q(x ) = q(x) = 0, q(y ) = q(x + y) = q(x) + q(y) + 2 · x, y = 2. (2.6) These pin structures are not diffeomorphic to the R-R pin structure...