= y == x 
t & x = y t
t:(u Term), x:u. (t = x) Propt,x:Term. (t = x) Prop| Who Cites reps? | |
| reps | Def x = y == x t & x = y t |
| Thm* t:(u Term), x:u. (t = x) Prop | |
| Thm* t,x:Term. (t = x) Prop |
| Syntax: | x = y | has structure: | reps(t; x; y) |
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