Nuprl Definition : DeMorgan-algebra-axioms
DeMorgan-algebra-axioms(dma) ==
  (∀x:Point(dma). (¬(¬(x)) = x ∈ Point(dma))) ∧ (∀x,y:Point(dma).  (¬(x ∧ y) = ¬(x) ∨ ¬(y) ∈ Point(dma)))
Definitions occuring in Statement : 
dma-neg: ¬(x), 
lattice-join: a ∨ b, 
lattice-meet: a ∧ b, 
lattice-point: Point(l), 
all: ∀x:A. B[x], 
and: P ∧ Q, 
equal: s = t ∈ T
Definitions occuring in definition : 
and: P ∧ Q, 
all: ∀x:A. B[x], 
equal: s = t ∈ T, 
lattice-point: Point(l), 
lattice-meet: a ∧ b, 
lattice-join: a ∨ b, 
dma-neg: ¬(x)
FDL editor aliases : 
DeMorgan-algebra-axioms
Latex:
DeMorgan-algebra-axioms(dma)  ==
    (\mforall{}x:Point(dma).  (\mneg{}(\mneg{}(x))  =  x))  \mwedge{}  (\mforall{}x,y:Point(dma).    (\mneg{}(x  \mwedge{}  y)  =  \mneg{}(x)  \mvee{}  \mneg{}(y)))
Date html generated:
2016_05_18-AM-11_46_56
Last ObjectModification:
2015_10_08-PM-05_41_50
Theory : lattices
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