Nuprl Lemma : l_sum_nil_lemma
l_sum([]) ~ 0
Proof
Definitions occuring in Statement :
l_sum: l_sum(L),
nil: [],
natural_number: $n,
sqequal: s ~ t
Definitions unfolded in proof :
l_sum: l_sum(L),
all: ∀x:A. B[x],
member: t ∈ T,
top: Top
Lemmas referenced :
reduce_nil_lemma
Rules used in proof :
sqequalSubstitution,
sqequalRule,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
cut,
lemma_by_obid,
sqequalHypSubstitution,
dependent_functionElimination,
thin,
isect_memberEquality,
voidElimination,
voidEquality,
hypothesis
Latex:
l\_sum([]) \msim{} 0
Date html generated:
2016_05_14-PM-02_52_22
Last ObjectModification:
2015_12_26-PM-02_34_40
Theory : list_1
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