Nuprl Lemma : single-bag-not-null
∀T:Type. ∀x:T.  (↑bag-null({x}) ~ False)
Proof
Definitions occuring in Statement : 
assert: ↑b, 
all: ∀x:A. B[x], 
false: False, 
universe: Type, 
sqequal: s ~ t, 
bag-null: bag-null(bs), 
single-bag: {x}
Definitions unfolded in proof : 
all: ∀x:A. B[x], 
member: t ∈ T, 
uall: ∀[x:A]. B[x], 
single-bag: {x}, 
bag-size: #(bs), 
top: Top, 
eq_int: (i =z j), 
assert: ↑b, 
ifthenelse: if b then t else f fi , 
bfalse: ff
Latex:
\mforall{}T:Type.  \mforall{}x:T.    (\muparrow{}bag-null(\{x\})  \msim{}  False)
Date html generated:
2016_05_17-AM-11_09_43
Last ObjectModification:
2015_12_29-PM-05_16_08
Theory : process-model
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