(mathematics) | Zermelo set theory - A set theory with the following set of
axioms:Extensionality: two sets are equal if and only if they have the same elements. Union: If U is a set, so is the union of all its elements. Pair-set: If a and b are sets, so is a, b. Foundation: Every set contains a set disjoint from itself. Comprehension (or Restriction): If P is a formula with one free variable and X a set then x: x is in X and P. is a set. Infinity: There exists an infinite set. Power-set: If X is a set, so is its power set. Zermelo set theory avoids Russell's paradox by excluding sets of elements with arbitrary properties - the Comprehension axiom only allows a property to be used to select elements of an existing set. Zermelo Fränkel set theory adds the Replacement axiom. |

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Zeomorphi

zep

Zephaniah

Zephyr

Zephyr cloth

Zephyr shawl

Zephyr yarn

Zephyrus

Zeppelin

Zeppo

ZEPRAS

zepto

Zequin

Zerda

Zeriba

Zermelo Fränkel set theory

**-- Zermelo set theory --**

Zero

Zero and Add Packed

zero assignment

zero coupon bond

zero hour

zero in

Zero Insertion Force

Zero method

zero point

zero tolerance

zero-content

zero-coupon bond

zero-coupon security

zero-sum game

zero-tolerance policy

zeroth

zep

Zephaniah

Zephyr

Zephyr cloth

Zephyr shawl

Zephyr yarn

Zephyrus

Zeppelin

Zeppo

ZEPRAS

zepto

Zequin

Zerda

Zeriba

Zermelo Fränkel set theory

Zero

Zero and Add Packed

zero assignment

zero coupon bond

zero hour

zero in

Zero Insertion Force

Zero method

zero point

zero tolerance

zero-content

zero-coupon bond

zero-coupon security

zero-sum game

zero-tolerance policy

zeroth