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sums will set you free

how to teach your child numbers arithmetic mathematics

writing down sets and set logic equations

New translation, the Magna Carta

 
how to teach your child number arithmetic mathematics - writing down sets and set logic equations is part of the series of documents about fundamental education at abelard.org. These pages are a sub-set of sums will set you free
how to teach a person number, arithmetic, mathematics on teaching reading

truth tables for connectives

NOT

state ~ state (¬)   state   ~ state (¬)
True [T] False [F] 1 0
False [F] True [T] 0 1

AND

AND truth tables (&     cap symbol)
state state and state   state state and state
True [T] True [T] True [T]   1 1 1
True [T] False [F] False [F]   1 0 0
False [F] True [T] False [F]   0 1 0
False [F] False [F] False [F]   0 0 0

OR (inclusive OR)

  OR (inclusive OR) truth tables (v   union symbol )
state state or state   state state or state
True [T] True [T] True [T]   1 1 1
True [T] False [F] True [T]   1 0 1
False [F] True [T] True [T]   0 1 1
False [F] False [F] False [F]   0 0 0

XOR (EXCLUSIVE OR)

XOR (exclusive OR) truth tables
state state XOR state   state state XOR state
True [T] True [T] False [F]   1 1 0
True [T] False [F] True [T]   1 0 1
False [F] True [T] True [T]   0 1 1
False [F] False [F] False [F]   0 0 0

implication

implies symbol truth table [implies]
a b a implies symbol b
True [T] True [T] True [T]
True [T] False [F] False [F]
False [F] True [T] True [T]
False [F] False [F] True [T]

equivalence

equivalent symbol truth table [equivalence]
a b a equivalent symbol b
True [T] True [T] True [T]
True [T] False [F] False [F]
False [F] True [T] False [F]
False [F] False [F] True [T]

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