t:sig(). t.rel 
Label
(SimpleType List)A:Type, B:(AType), p:(a:A
B(a)). 2of(p) B(1of(p))| Who Cites sig rel? | |
| sig_rel | Def t.rel == 2of(t) |
| Thm* t:sig(). t.rel Label(SimpleType List) | |
| pi2 | Def 2of(t) == t.2 |
| Thm* A:Type, B:(AType), p:(a:AB(a)). 2of(p) B(1of(p)) |
| Syntax: | t.rel | has structure: | sig_rel(t) |
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