20 lines
604 B
Lean4
20 lines
604 B
Lean4
import Game.Levels.AdvAddition.L01add_right_cancel
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import Game.Levels.AdvAddition.L02add_left_cancel
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import Game.Levels.AdvAddition.L03add_left_eq_self
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import Game.Levels.AdvAddition.L04add_right_eq_self
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import Game.Levels.AdvAddition.L05add_right_eq_zero
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import Game.Levels.AdvAddition.L06add_left_eq_zero
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World "AdvAddition"
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Title "Advanced Addition World"
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Introduction
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"
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In Advanced Addition World we will prove some basic
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addition facts such as $x+y=x\\implies y=0$. The theorems
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proved in this world will be used to build
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a theory of inequalities in `≤` World.
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Click on \"Start\" to proceed.
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"
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