x,y:T. Dec(x = y)T:Type{i}. Discrete{T} 
Type{i'}
PA:Prop. Dec(A) PropA == A 
FalseA:Prop. (A) Prop| Who Cites discrete? | |
| discrete | Def Discrete{T} == x,y:T. Dec(x = y) |
| Thm* T:Type{i}. Discrete{T} Type{i'} | |
| decidable | Def Dec(P) == P P |
| Thm* A:Prop. Dec(A) Prop | |
| not | Def A == A False |
| Thm* A:Prop. (A) Prop |
| Syntax: | Discrete{T} | has structure: | discrete(T) |
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