Nuprl Lemma : sqequal_zero

∀[x,y:Top].  (x ~0 y)


Proof




Definitions occuring in Statement :  uall: ∀[x:A]. B[x],  top: Top,  natural_number: $n,  sqequal_n: s ~n t
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T
Lemmas referenced :  top_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  Error :isect_memberFormation_alt,  introduction,  cut,  sqequalZero,  Error :axiomSqequalN,  hypothesis,  Error :inhabitedIsType,  hypothesisEquality,  sqequalRule,  sqequalHypSubstitution,  Error :isect_memberEquality_alt,  isectElimination,  thin,  Error :isectIsTypeImplies,  Error :universeIsType,  extract_by_obid

Latex:
\mforall{}[x,y:Top].    (x  \msim{}0  y)



Date html generated: 2019_06_20-AM-11_19_41
Last ObjectModification: 2018_10_15-AM-09_58_58

Theory : sqequal_1


Home Index