Step
*
of Lemma
sv-bag-tail_wf
∀[A:Type]. ∀[bs:bag(A)]. sv-bag-tail(bs) ∈ bag(A) supposing single-valued-bag(bs;A)
BY
{ ProveWfLemma }
1
1. A : Type
2. bs : bag(A)
3. single-valued-bag(bs;A)
⊢ bs ∈ A List
Latex:
Latex:
\mforall{}[A:Type]. \mforall{}[bs:bag(A)]. sv-bag-tail(bs) \mmember{} bag(A) supposing single-valued-bag(bs;A)
By
Latex:
ProveWfLemma
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