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Definition df-tset 12054
Description: Define the topology component of a topological space (structure). (Contributed by NM, 4-Sep-2011.) (Revised by Mario Carneiro, 14-Aug-2015.)
Assertion
Ref Expression
df-tset TopSet = Slot 9

Detailed syntax breakdown of Definition df-tset
StepHypRef Expression
1 cts 12041 . 2 class TopSet
2 c9 8790 . . 3 class 9
32cslot 11972 . 2 class Slot 9
41, 3wceq 1331 1 wff TopSet = Slot 9
Colors of variables: wff set class
This definition is referenced by:  tsetndx  12121  tsetid  12122  tsetslid  12123  eltpsg  12221
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