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Theorem tsetndxnn 13136
Description: The index of the slot for the group operation in an extensible structure is a positive integer. (Contributed by AV, 31-Oct-2024.)
Assertion
Ref Expression
tsetndxnn  |-  (TopSet `  ndx )  e.  NN

Proof of Theorem tsetndxnn
StepHypRef Expression
1 tsetndx 13133 . 2  |-  (TopSet `  ndx )  =  9
2 9nn 9240 . 2  |-  9  e.  NN
31, 2eqeltri 2280 1  |-  (TopSet `  ndx )  e.  NN
Colors of variables: wff set class
Syntax hints:    e. wcel 2178   ` cfv 5290   NNcn 9071   9c9 9129   ndxcnx 12944  TopSetcts 13030
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 711  ax-5 1471  ax-7 1472  ax-gen 1473  ax-ie1 1517  ax-ie2 1518  ax-8 1528  ax-10 1529  ax-11 1530  ax-i12 1531  ax-bndl 1533  ax-4 1534  ax-17 1550  ax-i9 1554  ax-ial 1558  ax-i5r 1559  ax-13 2180  ax-14 2181  ax-ext 2189  ax-sep 4178  ax-pow 4234  ax-pr 4269  ax-un 4498  ax-cnex 8051  ax-resscn 8052  ax-1re 8054  ax-addrcl 8057
This theorem depends on definitions:  df-bi 117  df-3an 983  df-tru 1376  df-nf 1485  df-sb 1787  df-eu 2058  df-mo 2059  df-clab 2194  df-cleq 2200  df-clel 2203  df-nfc 2339  df-ral 2491  df-rex 2492  df-v 2778  df-sbc 3006  df-un 3178  df-in 3180  df-ss 3187  df-pw 3628  df-sn 3649  df-pr 3650  df-op 3652  df-uni 3865  df-int 3900  df-br 4060  df-opab 4122  df-mpt 4123  df-id 4358  df-xp 4699  df-rel 4700  df-cnv 4701  df-co 4702  df-dm 4703  df-rn 4704  df-res 4705  df-iota 5251  df-fun 5292  df-fv 5298  df-ov 5970  df-inn 9072  df-2 9130  df-3 9131  df-4 9132  df-5 9133  df-6 9134  df-7 9135  df-8 9136  df-9 9137  df-ndx 12950  df-slot 12951  df-tset 13043
This theorem is referenced by:  prdsex  13216  prdsval  13220  psrval  14543  fnpsr  14544
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