We know a Program is a math procedure.
“A Program without Math is like Sex without Love.”
Do you know in Programming a First-Class Function is a Homomorphism in Abstract Algebra ?
In Functional / Dynamic Programming Language like Lisp, it supports First-Class Function.
Eg.
Map (sqr {1 2 5 4 7})
=> {1 4 25 16 49}
A First-Class Function like ‘Map’ is a Function call which accepts another function ‘sqr’ as argument.
Map means “Apply to All”.
Map applies ‘sqr’ to all members of the list {1 2 5 4 7}.
In abstract algebra, Map (eg. Linear Map) is a homomorphism !
Mathtuition88 