Onto a Two-Element Set
Difficulty: Easy · Topics: Discrete Mathematics, Functions, Function Combinatorics
Ikki elementli to‘plamga syuryektiv
How many onto functions f:\1, 2, 3, 4\→\a, b\ are there?
Nechta syuryektiv f:\1, 2, 3, 4\→\a, b\ funksiya mavjud?