Step
*
1
of Lemma
bag-product-append
1. bs : Top List
2. cs : Top List
3. u : Top
4. v : Top List
5. v + bs × cs ~ v × cs + bs × cs
⊢ [u / v] + bs × cs ~ [u / v] × cs + bs × cs
BY
{ ((RepUR ``bag-product bag-append`` 0 THEN Fold `bag-append` 0 THEN Fold `bag-product` 0)
THEN HypSubst' (-1) 0
THEN Unfold `bag-append` 0
THEN RWO "append_assoc_sq" 0
THEN Auto) }
Latex:
Latex:
1. bs : Top List
2. cs : Top List
3. u : Top
4. v : Top List
5. v + bs \mtimes{} cs \msim{} v \mtimes{} cs + bs \mtimes{} cs
\mvdash{} [u / v] + bs \mtimes{} cs \msim{} [u / v] \mtimes{} cs + bs \mtimes{} cs
By
Latex:
((RepUR ``bag-product bag-append`` 0 THEN Fold `bag-append` 0 THEN Fold `bag-product` 0)
THEN HypSubst' (-1) 0
THEN Unfold `bag-append` 0
THEN RWO "append\_assoc\_sq" 0
THEN Auto)
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