At: sigma decls mng value 1 1
1. ds: Collection(dec())
2. rho: Decl
3. l: Label
4. a1: [[ds]] rho(l)
5. x: SimpleType
6. x
dec_lookup(ds;l)
a1
[[x]] rho
By: Using [`ds',ds;`x',l]
(BackThru
Thm*
ds:Collection(dec()), rho:Decl, x:Label, y:[[ds]] rho(x)
, a:SimpleType. mk_dec(x, a)
ds 
y
[[a]] rho)
Generated subgoal:1 | mk_dec(l, x) ds |
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