| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > tsetndxnn | GIF version | ||
| Description: The index of the slot for the group operation in an extensible structure is a positive integer. (Contributed by AV, 31-Oct-2024.) |
| Ref | Expression |
|---|---|
| tsetndxnn | ⊢ (TopSet‘ndx) ∈ ℕ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | tsetndx 13517 | . 2 ⊢ (TopSet‘ndx) = 9 | |
| 2 | 9nn 9452 | . 2 ⊢ 9 ∈ ℕ | |
| 3 | 1, 2 | eqeltri 2311 | 1 ⊢ (TopSet‘ndx) ∈ ℕ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2209 ‘cfv 5372 ℕcn 9283 9c9 9341 ndxcnx 13327 TopSetcts 13414 |
| 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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4244 ax-pow 4306 ax-pr 4341 ax-un 4573 ax-cnex 8260 ax-resscn 8261 ax-1re 8263 ax-addrcl 8266 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-sbc 3052 df-un 3224 df-in 3226 df-ss 3233 df-pw 3687 df-sn 3711 df-pr 3712 df-op 3714 df-uni 3931 df-int 3966 df-br 4126 df-opab 4188 df-mpt 4189 df-id 4433 df-xp 4775 df-rel 4776 df-cnv 4777 df-co 4778 df-dm 4779 df-rn 4780 df-res 4781 df-iota 5332 df-fun 5374 df-fv 5380 df-ov 6078 df-inn 9284 df-2 9342 df-3 9343 df-4 9344 df-5 9345 df-6 9346 df-7 9347 df-8 9348 df-9 9349 df-ndx 13333 df-slot 13334 df-tset 13427 |
| This theorem is referenced by: prdsex 14149 prdsval 14150 psrval 14973 fnpsr 14974 |
| Copyright terms: Public domain | W3C validator |