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