Nuprl Lemma : spread-trivial

[x:Top × Top]. ∀[y:Top].  (let a,b in y)


Proof




Definitions occuring in Statement :  uall: [x:A]. B[x] top: Top spread: spread def product: x:A × B[x] sqequal: 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 isect_memberFormation introduction cut productElimination thin sqequalRule sqequalAxiom lemma_by_obid hypothesis sqequalHypSubstitution isect_memberEquality isectElimination hypothesisEquality productEquality

Latex:
\mforall{}[x:Top  \mtimes{}  Top].  \mforall{}[y:Top].    (let  a,b  =  x  in  y  \msim{}  y)



Date html generated: 2016_05_15-PM-03_25_43
Last ObjectModification: 2015_12_27-PM-01_07_16

Theory : general


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