S:Structure. |S| 
TypeA:Type, B:(A
Type), p:(a:A
B(a)). 1of(p) A| Who Cites carrier? | |
| carrier | Def |S| == 1of(S) |
| Thm* S:Structure. |S| Type | |
| pi1 | Def 1of(t) == t.1 |
| Thm* A:Type, B:(AType), p:(a:AB(a)). 1of(p) A |
| Syntax: | |S| | has structure: | carrier(S) |
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