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| Mirrors > Home > MPE Home > Th. List > Mathboxes > grpcanonhfstruct | Structured version Visualization version GIF version | ||
| Description: A group defined on a hereditarily finite set is an HFStruct. (Contributed by Eric Schmidt, 24-Oct-2026.) |
| Ref | Expression |
|---|---|
| grpcanonhfstruct.1 | ⊢ 𝐵 = (Base‘𝐺) |
| grpcanonhfstruct.2 | ⊢ ⨣ = (+𝑓‘𝐺) |
| grpcanonhfstruct.3 | ⊢ 𝐻 = {〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), ⨣ 〉} |
| grpcanonhfstruct.4 | ⊢ (𝜑 → 𝐺 ∈ Grp) |
| grpcanonhfstruct.5 | ⊢ (𝜑 → 𝐵 ∈ HF ) |
| Ref | Expression |
|---|---|
| grpcanonhfstruct | ⊢ (𝜑 → 𝐻 ∈ HFStruct) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | grpcanonhfstruct.3 | . . 3 ⊢ 𝐻 = {〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), ⨣ 〉} | |
| 2 | 1 | grpstr 17485 | . 2 ⊢ 𝐻 Struct 〈(Base‘ndx), (+g‘ndx)〉 |
| 3 | grpcanonhfstruct.5 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ HF ) | |
| 4 | grpcanonhfstruct.4 | . . . . . 6 ⊢ (𝜑 → 𝐺 ∈ Grp) | |
| 5 | grpcanonhfstruct.1 | . . . . . . 7 ⊢ 𝐵 = (Base‘𝐺) | |
| 6 | grpcanonhfstruct.2 | . . . . . . 7 ⊢ ⨣ = (+𝑓‘𝐺) | |
| 7 | 5, 6 | grpplusf 19185 | . . . . . 6 ⊢ (𝐺 ∈ Grp → ⨣ :(𝐵 × 𝐵)⟶𝐵) |
| 8 | fssxp 6756 | . . . . . 6 ⊢ ( ⨣ :(𝐵 × 𝐵)⟶𝐵 → ⨣ ⊆ ((𝐵 × 𝐵) × 𝐵)) | |
| 9 | 4, 7, 8 | 3syl 19 | . . . . 5 ⊢ (𝜑 → ⨣ ⊆ ((𝐵 × 𝐵) × 𝐵)) |
| 10 | hfxp 46210 | . . . . . . 7 ⊢ ((𝐵 ∈ HF ∧ 𝐵 ∈ HF ) → (𝐵 × 𝐵) ∈ HF ) | |
| 11 | 3, 3, 10 | syl2anc 596 | . . . . . 6 ⊢ (𝜑 → (𝐵 × 𝐵) ∈ HF ) |
| 12 | hfxp 46210 | . . . . . 6 ⊢ (((𝐵 × 𝐵) ∈ HF ∧ 𝐵 ∈ HF ) → ((𝐵 × 𝐵) × 𝐵) ∈ HF ) | |
| 13 | 11, 3, 12 | syl2anc 596 | . . . . 5 ⊢ (𝜑 → ((𝐵 × 𝐵) × 𝐵) ∈ HF ) |
| 14 | hfsshf 9939 | . . . . 5 ⊢ (( ⨣ ⊆ ((𝐵 × 𝐵) × 𝐵) ∧ ((𝐵 × 𝐵) × 𝐵) ∈ HF ) → ⨣ ∈ HF ) | |
| 15 | 9, 13, 14 | syl2anc 596 | . . . 4 ⊢ (𝜑 → ⨣ ∈ HF ) |
| 16 | fvex 6918 | . . . . 5 ⊢ (+g‘ndx) ∈ V | |
| 17 | fvex 6918 | . . . . . 6 ⊢ (Base‘ndx) ∈ V | |
| 18 | relpropg 46111 | . . . . . 6 ⊢ ((((Base‘ndx) ∈ V ∧ 𝐵 ∈ HF ) ∧ ((+g‘ndx) ∈ V ∧ ⨣ ∈ HF )) → Rel {〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), ⨣ 〉}) | |
| 19 | 17, 18 | mpanl1 713 | . . . . 5 ⊢ ((𝐵 ∈ HF ∧ ((+g‘ndx) ∈ V ∧ ⨣ ∈ HF )) → Rel {〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), ⨣ 〉}) |
| 20 | 16, 19 | mpanr1 716 | . . . 4 ⊢ ((𝐵 ∈ HF ∧ ⨣ ∈ HF ) → Rel {〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), ⨣ 〉}) |
| 21 | 3, 15, 20 | syl2anc 596 | . . 3 ⊢ (𝜑 → Rel {〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), ⨣ 〉}) |
| 22 | 1 | releqi 5759 | . . 3 ⊢ (Rel 𝐻 ↔ Rel {〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), ⨣ 〉}) |
| 23 | 21, 22 | sylibr 237 | . 2 ⊢ (𝜑 → Rel 𝐻) |
| 24 | 1 | rneqi 5925 | . . . 4 ⊢ ran 𝐻 = ran {〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), ⨣ 〉} |
| 25 | rnpropg 6235 | . . . . 5 ⊢ (((Base‘ndx) ∈ V ∧ (+g‘ndx) ∈ V) → ran {〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), ⨣ 〉} = {𝐵, ⨣ }) | |
| 26 | 17, 16, 25 | mp2an 705 | . . . 4 ⊢ ran {〈(Base‘ndx), 𝐵〉, 〈(+g‘ndx), ⨣ 〉} = {𝐵, ⨣ } |
| 27 | 24, 26 | eqtri 2786 | . . 3 ⊢ ran 𝐻 = {𝐵, ⨣ } |
| 28 | 3, 15 | prssd 4781 | . . 3 ⊢ (𝜑 → {𝐵, ⨣ } ⊆ HF ) |
| 29 | 27, 28 | eqsstrid 3951 | . 2 ⊢ (𝜑 → ran 𝐻 ⊆ HF ) |
| 30 | ishfstruct 46224 | . 2 ⊢ ((𝐻 Struct 〈(Base‘ndx), (+g‘ndx)〉 ∧ Rel 𝐻 ∧ ran 𝐻 ⊆ HF ) → 𝐻 ∈ HFStruct) | |
| 31 | 2, 23, 29, 30 | mp3an2i 1496 | 1 ⊢ (𝜑 → 𝐻 ∈ HFStruct) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2147 Vcvv 3454 ⊆ wss 3900 {cpr 4590 〈cop 4838 class class class wbr 5106 × cxp 5653 ran crn 5656 Rel wrel 5660 ⟶wf 6551 ‘cfv 6555 HF chf 9928 Struct cstr 17350 ndxcnx 17397 Basecbs 17413 +gcplusg 17454 +𝑓cplusf 18839 Grpcgrp 19170 HFStructchfstruct 46219 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5235 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7772 ax-cnex 11280 ax-resscn 11281 ax-1cn 11282 ax-icn 11283 ax-addcl 11284 ax-addrcl 11285 ax-mulcl 11286 ax-mulrcl 11287 ax-mulcom 11288 ax-addass 11289 ax-mulass 11290 ax-distr 11291 ax-i2m1 11292 ax-1ne0 11293 ax-1rid 11294 ax-rnegex 11295 ax-rrecex 11296 ax-cnre 11297 ax-pre-lttri 11298 ax-pre-lttrn 11299 ax-pre-ltadd 11300 ax-pre-mulgt0 11301 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-int 4911 df-iun 4956 df-br 5107 df-opab 5171 df-mpt 5190 df-tr 5216 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6319 df-ord 6380 df-on 6381 df-lim 6382 df-suc 6383 df-iota 6509 df-fun 6557 df-fn 6558 df-f 6559 df-f1 6560 df-fo 6561 df-f1o 6562 df-fv 6563 df-riota 7397 df-ov 7443 df-oprab 7444 df-mpo 7445 df-om 7899 df-1st 8022 df-2nd 8023 df-frecs 8324 df-wrecs 8355 df-recs 8404 df-rdg 8443 df-1o 8501 df-er 8742 df-en 8999 df-dom 9000 df-sdom 9001 df-fin 9002 df-r1 9792 df-rank 9793 df-hf 9929 df-pnf 11369 df-mnf 11370 df-xr 11371 df-ltxr 11372 df-le 11373 df-sub 11567 df-neg 11568 df-nn 12360 df-2 12429 df-n0 12631 df-z 12718 df-uz 12990 df-fz 13664 df-struct 17351 df-slot 17386 df-ndx 17398 df-base 17414 df-plusg 17467 df-plusf 18841 df-mgm 18842 df-sgrp 18934 df-mnd 18950 df-grp 19173 df-hfstruct 46220 |
| This theorem is used by: fingrphf 46229 |
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