Step
*
3
of Lemma
list-is-singleton-iff
1. [T] : Type
2. L : T List
3. x : T
4. L = [x] ∈ (T List)
5. f : T
6. f = x ∈ T
⊢ (f ∈ L)
BY
{ (RWO "-3 -1" 0 THEN Auto) }
Latex:
Latex:
1. [T] : Type
2. L : T List
3. x : T
4. L = [x]
5. f : T
6. f = x
\mvdash{} (f \mmember{} L)
By
Latex:
(RWO "-3 -1" 0 THEN Auto)
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