Step
*
of Lemma
fset_of_mset_mem
∀s:DSet. ∀a:MSet{s}. ∀c:|s|. c ∈b fset_of_mset(s;a) = c ∈b a
BY
{ ((RepD THENM OnVar `a' MoveToConcl
THENM BLemma `mset_ind_a`) THENA Auto) }
1
1. s : DSet
2. c : |s|
⊢ ∀w:MSet{s}. SqStable(c ∈b fset_of_mset(s;w) = c ∈b w)
2
1. s : DSet
2. c : |s|
⊢ c ∈b fset_of_mset(s;0{s}) = c ∈b 0{s}
3
1. s : DSet
2. c : |s|
⊢ ∀x:|s|. c ∈b fset_of_mset(s;mset_inj{s}(x)) = c ∈b mset_inj{s}(x)
4
1. s : DSet
2. c : |s|
⊢ ∀ys,ys':MSet{s}.
(c ∈b fset_of_mset(s;ys) = c ∈b ys
⇒ c ∈b fset_of_mset(s;ys') = c ∈b ys'
⇒ c ∈b fset_of_mset(s;ys + ys') = c ∈b ys + ys')
Latex:
Latex:
\mforall{}s:DSet. \mforall{}a:MSet\{s\}. \mforall{}c:|s|. c \mmember{}\msubb{} fset\_of\_mset(s;a) = c \mmember{}\msubb{} a
By
Latex:
((RepD THENM OnVar `a' MoveToConcl
THENM BLemma `mset\_ind\_a`) THENA Auto)
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