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Mirrors > Home > MPE Home > Th. List > srngf1o | Structured version Visualization version GIF version |
Description: The involution function in a star ring is a bijection. (Contributed by Mario Carneiro, 6-Oct-2015.) |
Ref | Expression |
---|---|
srngcnv.i | ⊢ ∗ = (*rf‘𝑅) |
srngf1o.b | ⊢ 𝐵 = (Base‘𝑅) |
Ref | Expression |
---|---|
srngf1o | ⊢ (𝑅 ∈ *-Ring → ∗ :𝐵–1-1-onto→𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2736 | . . . 4 ⊢ (oppr‘𝑅) = (oppr‘𝑅) | |
2 | srngcnv.i | . . . 4 ⊢ ∗ = (*rf‘𝑅) | |
3 | 1, 2 | srngrhm 20217 | . . 3 ⊢ (𝑅 ∈ *-Ring → ∗ ∈ (𝑅 RingHom (oppr‘𝑅))) |
4 | srngf1o.b | . . . 4 ⊢ 𝐵 = (Base‘𝑅) | |
5 | eqid 2736 | . . . 4 ⊢ (Base‘(oppr‘𝑅)) = (Base‘(oppr‘𝑅)) | |
6 | 4, 5 | rhmf 20066 | . . 3 ⊢ ( ∗ ∈ (𝑅 RingHom (oppr‘𝑅)) → ∗ :𝐵⟶(Base‘(oppr‘𝑅))) |
7 | ffn 6651 | . . 3 ⊢ ( ∗ :𝐵⟶(Base‘(oppr‘𝑅)) → ∗ Fn 𝐵) | |
8 | 3, 6, 7 | 3syl 18 | . 2 ⊢ (𝑅 ∈ *-Ring → ∗ Fn 𝐵) |
9 | 2 | srngcnv 20219 | . . . 4 ⊢ (𝑅 ∈ *-Ring → ∗ = ◡ ∗ ) |
10 | 9 | fneq1d 6578 | . . 3 ⊢ (𝑅 ∈ *-Ring → ( ∗ Fn 𝐵 ↔ ◡ ∗ Fn 𝐵)) |
11 | 8, 10 | mpbid 231 | . 2 ⊢ (𝑅 ∈ *-Ring → ◡ ∗ Fn 𝐵) |
12 | dff1o4 6775 | . 2 ⊢ ( ∗ :𝐵–1-1-onto→𝐵 ↔ ( ∗ Fn 𝐵 ∧ ◡ ∗ Fn 𝐵)) | |
13 | 8, 11, 12 | sylanbrc 583 | 1 ⊢ (𝑅 ∈ *-Ring → ∗ :𝐵–1-1-onto→𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1540 ∈ wcel 2105 ◡ccnv 5619 Fn wfn 6474 ⟶wf 6475 –1-1-onto→wf1o 6478 ‘cfv 6479 (class class class)co 7337 Basecbs 17009 opprcoppr 19956 RingHom crh 20051 *rfcstf 20209 *-Ringcsr 20210 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2707 ax-rep 5229 ax-sep 5243 ax-nul 5250 ax-pow 5308 ax-pr 5372 ax-un 7650 ax-cnex 11028 ax-resscn 11029 ax-1cn 11030 ax-icn 11031 ax-addcl 11032 ax-addrcl 11033 ax-mulcl 11034 ax-mulrcl 11035 ax-mulcom 11036 ax-addass 11037 ax-mulass 11038 ax-distr 11039 ax-i2m1 11040 ax-1ne0 11041 ax-1rid 11042 ax-rnegex 11043 ax-rrecex 11044 ax-cnre 11045 ax-pre-lttri 11046 ax-pre-lttrn 11047 ax-pre-ltadd 11048 ax-pre-mulgt0 11049 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2886 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-reu 3350 df-rab 3404 df-v 3443 df-sbc 3728 df-csb 3844 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3917 df-nul 4270 df-if 4474 df-pw 4549 df-sn 4574 df-pr 4576 df-op 4580 df-uni 4853 df-iun 4943 df-br 5093 df-opab 5155 df-mpt 5176 df-tr 5210 df-id 5518 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5575 df-we 5577 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6238 df-ord 6305 df-on 6306 df-lim 6307 df-suc 6308 df-iota 6431 df-fun 6481 df-fn 6482 df-f 6483 df-f1 6484 df-fo 6485 df-f1o 6486 df-fv 6487 df-riota 7293 df-ov 7340 df-oprab 7341 df-mpo 7342 df-om 7781 df-2nd 7900 df-frecs 8167 df-wrecs 8198 df-recs 8272 df-rdg 8311 df-er 8569 df-map 8688 df-en 8805 df-dom 8806 df-sdom 8807 df-pnf 11112 df-mnf 11113 df-xr 11114 df-ltxr 11115 df-le 11116 df-sub 11308 df-neg 11309 df-nn 12075 df-2 12137 df-sets 16962 df-slot 16980 df-ndx 16992 df-base 17010 df-plusg 17072 df-0g 17249 df-mhm 18527 df-ghm 18928 df-mgp 19816 df-ur 19833 df-ring 19880 df-rnghom 20054 df-srng 20212 |
This theorem is referenced by: srngcl 20221 srngnvl 20222 iporthcom 20946 |
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