Nuprl Lemma : hd-nil
hd([]) ~ ⊥
Proof
Definitions occuring in Statement :
hd: hd(l),
nil: [],
bottom: ⊥,
sqequal: s ~ t
Definitions unfolded in proof :
nil: [],
hd: hd(l),
it: ⋅
Lemmas referenced :
pi1-axiom
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
sqequalRule,
cut,
lemma_by_obid,
hypothesis
Latex:
hd([]) \msim{} \mbot{}
Date html generated:
2016_05_14-AM-06_35_55
Last ObjectModification:
2015_12_26-PM-00_34_22
Theory : list_0
Home
Index