Nuprl Lemma : cons_bag_empty_lemma
∀x:Top. (x.{} ~ {x})
Proof
Definitions occuring in Statement : 
cons-bag: x.b
, 
single-bag: {x}
, 
empty-bag: {}
, 
top: Top
, 
all: ∀x:A. B[x]
, 
sqequal: s ~ t
Definitions unfolded in proof : 
all: ∀x:A. B[x]
, 
member: t ∈ T
, 
empty-bag: {}
, 
cons-bag: x.b
, 
single-bag: {x}
Lemmas referenced : 
top_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
lambdaFormation, 
cut, 
hypothesis, 
lemma_by_obid, 
sqequalRule
Latex:
\mforall{}x:Top.  (x.\{\}  \msim{}  \{x\})
Date html generated:
2016_05_15-PM-02_21_53
Last ObjectModification:
2015_12_27-AM-09_55_13
Theory : bags
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