Step
*
1
of Lemma
firstn_append_front
1. L1 : Top List
2. L2 : Top List@i
⊢ firstn(||L1 @ L2|| - ||L2||;L1 @ L2) ~ L1
BY
{ (RWO "firstn_append" 0 THEN Auto) }
1
1. L1 : Top List
2. L2 : Top List@i
⊢ firstn(||L1 @ L2|| - ||L2||;L1) ~ L1
Latex:
Latex:
1. L1 : Top List
2. L2 : Top List@i
\mvdash{} firstn(||L1 @ L2|| - ||L2||;L1 @ L2) \msim{} L1
By
Latex:
(RWO "firstn\_append" 0 THEN Auto)
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