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История изменений

Исправление qnikst, (текущая версия) :

[f . g] = \x -> f (g x)
[f $ x] = f x
[f . g $ x] = /definition of '$'/
[(f . g) x] = /definition of '.'/
[(\y -> f (g y)) x] = /substitute x/
[f (g x)]   = /definition of $/
[f $ g x]

ваши предложения?

Исходная версия qnikst, :

[f . g] = \x -> f (g x) [f $ x] = f x

[f . g $ x] = /definition of '$'/ [(f . g) x] = /definition of '.'/ [(\y -> f (g y)) x] = /substitute x/ [f (g x)] = /definition of $/ [f $ g x]

ваши предложения?