1/22/09

Proved 1 + 1 = 2

Principia Mathematica is the book Russell wrote with Alfred North Whitehead where they gave a logical foundation of Mathematics by developing the Theory of Types that obviated the Russell's paradox. This
assertion may become more convincing after a look at the page 362 of Principia Mathematica where Russell and Whitehead finally proved that 1 + 1 = 2.

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