import NNG.Levels.AdvProposition.Level_1
import NNG.Levels.AdvProposition.Level_2
import NNG.Levels.AdvProposition.Level_3
import NNG.Levels.AdvProposition.Level_4
import NNG.Levels.AdvProposition.Level_5
import NNG.Levels.AdvProposition.Level_6
import NNG.Levels.AdvProposition.Level_7
import NNG.Levels.AdvProposition.Level_8
import NNG.Levels.AdvProposition.Level_9
import NNG.Levels.AdvProposition.Level_10


Game "NNG"
World "AdvProposition"
Title "Advanced Proposition World"

Introduction
"
In this world we will learn five key tactics needed to solve all the
levels of the Natural Number Game, namely `constructor`, `rcases`, `left`, `right`, and `exfalso`.
These, and `use` (which we'll get to in Inequality World) are all the
tactics you will need to beat all the levels of the game.
"