Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > slotslfn | GIF version |
Description: A slot is a function on sets, treated as structures. (Contributed by Mario Carneiro, 22-Sep-2015.) (Revised by Jim Kingdon, 10-Feb-2023.) |
Ref | Expression |
---|---|
slotslfn.e | ⊢ (𝐸 = Slot (𝐸‘ndx) ∧ (𝐸‘ndx) ∈ ℕ) |
Ref | Expression |
---|---|
slotslfn | ⊢ 𝐸 Fn V |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex 2684 | . . 3 ⊢ 𝑥 ∈ V | |
2 | slotslfn.e | . . . 4 ⊢ (𝐸 = Slot (𝐸‘ndx) ∧ (𝐸‘ndx) ∈ ℕ) | |
3 | 2 | simpri 112 | . . 3 ⊢ (𝐸‘ndx) ∈ ℕ |
4 | 1, 3 | fvex 5434 | . 2 ⊢ (𝑥‘(𝐸‘ndx)) ∈ V |
5 | 2 | simpli 110 | . . 3 ⊢ 𝐸 = Slot (𝐸‘ndx) |
6 | df-slot 11952 | . . 3 ⊢ Slot (𝐸‘ndx) = (𝑥 ∈ V ↦ (𝑥‘(𝐸‘ndx))) | |
7 | 5, 6 | eqtri 2158 | . 2 ⊢ 𝐸 = (𝑥 ∈ V ↦ (𝑥‘(𝐸‘ndx))) |
8 | 4, 7 | fnmpti 5246 | 1 ⊢ 𝐸 Fn V |
Colors of variables: wff set class |
Syntax hints: ∧ wa 103 = wceq 1331 ∈ wcel 1480 Vcvv 2681 ↦ cmpt 3984 Fn wfn 5113 ‘cfv 5118 ℕcn 8713 ndxcnx 11945 Slot cslot 11947 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 ax-sep 4041 ax-pow 4093 ax-pr 4126 ax-un 4350 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2000 df-mo 2001 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-ral 2419 df-rex 2420 df-v 2683 df-un 3070 df-in 3072 df-ss 3079 df-pw 3507 df-sn 3528 df-pr 3529 df-op 3531 df-uni 3732 df-br 3925 df-opab 3985 df-mpt 3986 df-id 4210 df-xp 4540 df-rel 4541 df-cnv 4542 df-co 4543 df-dm 4544 df-rn 4545 df-iota 5083 df-fun 5120 df-fn 5121 df-fv 5126 df-slot 11952 |
This theorem is referenced by: slotex 11975 basfn 12005 topontopn 12193 |
Copyright terms: Public domain | W3C validator |