Fear of commitment non-marriage is an entirely valid, logical position based on rational consideration of the economic factors involved. Fear of commitment In self-help literature, fear of commitment is the avoidance of long-term partnership or marriage. The concept is often much more pervasive, affecting school, work, and home life as well. The term "commitmentphobia" was coined in the popular self-help book "Men Who Can't Love" in 1987. Following criticism of the perceived sexist idea that only men were commitmentphobic, the authors provided a more gender balanced model of commitmentphobia in a later work, " He's Scared, She's Scared" (1995). When aversion to marriage
Proof that π is irrational In 1761, Lambert proved that is irrational by first showing that this continued fraction expansion holds: Then Lambert proved that if "x" is non-zero and rational then this expression must be irrational. Since tan(/4) = 1, it follows that /4 is irrational and therefore that is irrational. A simplification of Lambert's proof is given below. This proof uses the characterization of as the smallest positive number whose half is a zero of the cosine function and it actually proves that is irrational. As in many proofs of irrationality, the argument proceeds by reductio ad absurdum. Consider the sequences ("A") and