LogicSupplement Sections DiscrMathExt Doc
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Def  P & Q == PQ

is mentioned by

Thm*  R:(AAProp). 
Thm*  (EquivRel x,y:A. R(x,y))
Thm*  
Thm*  (x:A. R(x,x) & (y:A. R(x,y)  R(y,x) & (z:A. R(y,z)  R(x,z))))
[equivrel_characterization]
Thm*  {x:{x:A| P(x) }| Q(x) } =ext {x:A| P(x) & Q(x) }[exteq_subset_vs_and]
Thm*  P XOR Q  (Q  P) & Dec(P)[xor_vs_neg_n_dec]
Def  x is the u:A. P(u) == P(x) & (u:A. P(u)  u = x)[is_the]
Def  P XOR Q == P  Q & (P & Q)[xor]
Def  A =ext B == (x:A. x  B) & (x:B. x  A)[exteq]

In prior sections: core int 1 bool 1 rel 1

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LogicSupplement Sections DiscrMathExt Doc