This draft confuses the usual, explicit definition of functions with algorithmic definitions. For example, the function on the real plane that takes (a,b) and returns 1 when a< b or returns 0 otherwise, where < is a well-ordering on the reals given by the axiom of choice, is certainly not algorithmic.
An average full-grown male Labrador Retriever weighs anywhere between 65 and 80 lbs. Males are characteristically larger than females, though are just as prone to becoming overweight. The average female Labrador Retriever can weigh from 55 to 70 lbs, depending on bone structure and diet.
Color can range from black through chocolate to a red/yellow or even almost white. The Labrador retriever is a moderately fast maturing breed, reaching adult height from six to 12 months, but possibly still filling out up to 2 years of age. Many Labs reach 12 to 14 years of age.