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| Mirrors > Home > ILE Home > Th. List > baseslid | GIF version | ||
| Description: The base set extractor is a slot. (Contributed by Jim Kingdon, 31-Jan-2023.) |
| Ref | Expression |
|---|---|
| baseslid | ⊢ (Base = Slot (Base‘ndx) ∧ (Base‘ndx) ∈ ℕ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | baseid 13197 | . 2 ⊢ Base = Slot (Base‘ndx) | |
| 2 | basendxnn 13199 | . 2 ⊢ (Base‘ndx) ∈ ℕ | |
| 3 | 1, 2 | ndxslid 13168 | 1 ⊢ (Base = Slot (Base‘ndx) ∧ (Base‘ndx) ∈ ℕ) |
| Colors of variables: wff set class |
| Syntax hints: ∧ wa 104 = wceq 1398 ∈ wcel 2202 ‘cfv 5333 ℕcn 9186 ndxcnx 13140 Slot cslot 13142 Basecbs 13143 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-cnex 8166 ax-resscn 8167 ax-1re 8169 ax-addrcl 8172 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ral 2516 df-rex 2517 df-v 2805 df-sbc 3033 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-int 3934 df-br 4094 df-opab 4156 df-mpt 4157 df-id 4396 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-rn 4742 df-res 4743 df-iota 5293 df-fun 5335 df-fv 5341 df-inn 9187 df-ndx 13146 df-slot 13147 df-base 13149 |
| This theorem is referenced by: basfn 13202 ressbasd 13211 opelstrbas 13259 1strbas 13261 2strbasg 13264 topnfn 13388 topnvalg 13395 topnidg 13396 mgpbasg 14001 opprbasg 14150 rmodislmod 14427 srabaseg 14515 cnfldbas 14636 setsmsbasg 15270 setsvtx 15972 |
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