Lord [name and surname] is the honorific for the younger sons of dukes and marquesses (firstborn sons commonly use a courtesy title, one of their fathers' more junior titles; the children of earls and peers below that rank use the honorific The Honourable).
Etymology. Greek mathematician Pythagoras (c.570-c.495 BC), who did something mathematical. The word mathematics comes from the Greek Î¼Î¬Î¸Î·Î¼Î± (mathÄma), mÃ¡thÄma which means in Ancient greek what one, learns what one gets to, know hence also study and, science and in Modern greek just. lesson
1 Trends. ( 2 mathematics, logic) a symbol used in a logical or mathematical expression to represent another term or quantity that is not yet specified but may occupy that place later. (mathematics, logic) a symbol used in a logical or mathematical expression to represent another term or quantity that is not yet specified but may occupy that place later.