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| Mirrors > Home > ILE Home > Th. List > 2strstr1g | GIF version | ||
| Description: A constructed two-slot structure. Version of 2strstrg 13138 not depending on the hard-coded index value of the base set. (Contributed by AV, 22-Sep-2020.) (Revised by Jim Kingdon, 2-Feb-2023.) |
| Ref | Expression |
|---|---|
| 2str1.g | ⊢ 𝐺 = {〈(Base‘ndx), 𝐵〉, 〈𝑁, + 〉} |
| 2str1.b | ⊢ (Base‘ndx) < 𝑁 |
| 2str1.n | ⊢ 𝑁 ∈ ℕ |
| Ref | Expression |
|---|---|
| 2strstr1g | ⊢ ((𝐵 ∈ 𝑉 ∧ + ∈ 𝑊) → 𝐺 Struct 〈(Base‘ndx), 𝑁〉) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2str1.g | . . . 4 ⊢ 𝐺 = {〈(Base‘ndx), 𝐵〉, 〈𝑁, + 〉} | |
| 2 | eqid 2229 | . . . . . . . 8 ⊢ Slot 𝑁 = Slot 𝑁 | |
| 3 | 2str1.n | . . . . . . . 8 ⊢ 𝑁 ∈ ℕ | |
| 4 | 2, 3 | ndxarg 13041 | . . . . . . 7 ⊢ (Slot 𝑁‘ndx) = 𝑁 |
| 5 | 4 | eqcomi 2233 | . . . . . 6 ⊢ 𝑁 = (Slot 𝑁‘ndx) |
| 6 | 5 | opeq1i 3859 | . . . . 5 ⊢ 〈𝑁, + 〉 = 〈(Slot 𝑁‘ndx), + 〉 |
| 7 | 6 | preq2i 3747 | . . . 4 ⊢ {〈(Base‘ndx), 𝐵〉, 〈𝑁, + 〉} = {〈(Base‘ndx), 𝐵〉, 〈(Slot 𝑁‘ndx), + 〉} |
| 8 | 1, 7 | eqtri 2250 | . . 3 ⊢ 𝐺 = {〈(Base‘ndx), 𝐵〉, 〈(Slot 𝑁‘ndx), + 〉} |
| 9 | basendx 13073 | . . . 4 ⊢ (Base‘ndx) = 1 | |
| 10 | 2str1.b | . . . 4 ⊢ (Base‘ndx) < 𝑁 | |
| 11 | 9, 10 | eqbrtrri 4105 | . . 3 ⊢ 1 < 𝑁 |
| 12 | 8, 2, 11, 3 | 2strstrg 13138 | . 2 ⊢ ((𝐵 ∈ 𝑉 ∧ + ∈ 𝑊) → 𝐺 Struct 〈1, 𝑁〉) |
| 13 | 9 | opeq1i 3859 | . 2 ⊢ 〈(Base‘ndx), 𝑁〉 = 〈1, 𝑁〉 |
| 14 | 12, 13 | breqtrrdi 4124 | 1 ⊢ ((𝐵 ∈ 𝑉 ∧ + ∈ 𝑊) → 𝐺 Struct 〈(Base‘ndx), 𝑁〉) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 = wceq 1395 ∈ wcel 2200 {cpr 3667 〈cop 3669 class class class wbr 4082 ‘cfv 5314 1c1 7988 < clt 8169 ℕcn 9098 Struct cstr 13014 ndxcnx 13015 Slot cslot 13017 Basecbs 13018 |
| 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-in1 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4201 ax-pow 4257 ax-pr 4292 ax-un 4521 ax-setind 4626 ax-cnex 8078 ax-resscn 8079 ax-1cn 8080 ax-1re 8081 ax-icn 8082 ax-addcl 8083 ax-addrcl 8084 ax-mulcl 8085 ax-addcom 8087 ax-addass 8089 ax-distr 8091 ax-i2m1 8092 ax-0lt1 8093 ax-0id 8095 ax-rnegex 8096 ax-cnre 8098 ax-pre-ltirr 8099 ax-pre-ltwlin 8100 ax-pre-lttrn 8101 ax-pre-apti 8102 ax-pre-ltadd 8103 |
| This theorem depends on definitions: df-bi 117 df-3or 1003 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-nel 2496 df-ral 2513 df-rex 2514 df-reu 2515 df-rab 2517 df-v 2801 df-sbc 3029 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-nul 3492 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3888 df-int 3923 df-br 4083 df-opab 4145 df-mpt 4146 df-id 4381 df-xp 4722 df-rel 4723 df-cnv 4724 df-co 4725 df-dm 4726 df-rn 4727 df-res 4728 df-ima 4729 df-iota 5274 df-fun 5316 df-fn 5317 df-f 5318 df-fv 5322 df-riota 5947 df-ov 5997 df-oprab 5998 df-mpo 5999 df-pnf 8171 df-mnf 8172 df-xr 8173 df-ltxr 8174 df-le 8175 df-sub 8307 df-neg 8308 df-inn 9099 df-n0 9358 df-z 9435 df-uz 9711 df-fz 10193 df-struct 13020 df-ndx 13021 df-slot 13022 df-base 13024 |
| This theorem is referenced by: 2strbas1g 13142 2strop1g 13143 |
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