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SamHB

And the result is a theorem.

SamHB

Try to explain (roughly) the difference between an axiom and a postulate.

Abcqwe

Added much-needed citations and expanded information

DavidB4-bot

→‎Equivalent statements of the fifth postulate: clean up & uniformity

RSchlafly

→‎Euclid's fifth postulate: negate it to get non-E

CSGuy

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NathanG

sp

DanielB

→‎The fifth postulate: made clearer

DanielB

→‎The fifth postulate

DanielB

→‎The fifth postulate

Luke314

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SharonS

cat

N

linked "Euclid" + Category:Mathematics

Dpbsmith

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BenjaminS

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BenjaminS

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SharonS

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