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Syntax Definition wdisj 3745
Description: Extend wff notation to include the statement that a family of classes 𝐵(𝑥), for 𝑥𝐴, is a disjoint family.
Ref Expression
vx setvar 𝑥
cA class 𝐴
cB class 𝐵
Ref Expression
wdisj wff Disj 𝑥𝐴 𝐵

See definition df-disj 3746 for more information.

Colors of variables: wff set class
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