They put first or cover some of the easier calculus topics in order to develop skills and provide a context for the rest. Besides the foreword, more on what is all about or not. Reason A romantic view of mathematical induction. A few words about the next chapters. A few words about the next chapters.
Politicians never lie.
Sensible politicians understand their own intent and the words written or given in laws they pass. Is the pattern reliable or accidentally. Can't tell you for sure, but we can guess. To learn more, read Alice in Wonderland and through the looking glass. Writing Mathematics Speaking links Road Safety .