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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 2820 | . . . 4 ⊢ (oppr‘𝑅) = (oppr‘𝑅) | |
2 | srngcnv.i | . . . 4 ⊢ ∗ = (*rf‘𝑅) | |
3 | 1, 2 | srngrhm 19615 | . . 3 ⊢ (𝑅 ∈ *-Ring → ∗ ∈ (𝑅 RingHom (oppr‘𝑅))) |
4 | srngf1o.b | . . . 4 ⊢ 𝐵 = (Base‘𝑅) | |
5 | eqid 2820 | . . . 4 ⊢ (Base‘(oppr‘𝑅)) = (Base‘(oppr‘𝑅)) | |
6 | 4, 5 | rhmf 19471 | . . 3 ⊢ ( ∗ ∈ (𝑅 RingHom (oppr‘𝑅)) → ∗ :𝐵⟶(Base‘(oppr‘𝑅))) |
7 | ffn 6507 | . . 3 ⊢ ( ∗ :𝐵⟶(Base‘(oppr‘𝑅)) → ∗ Fn 𝐵) | |
8 | 3, 6, 7 | 3syl 18 | . 2 ⊢ (𝑅 ∈ *-Ring → ∗ Fn 𝐵) |
9 | 2 | srngcnv 19617 | . . . 4 ⊢ (𝑅 ∈ *-Ring → ∗ = ◡ ∗ ) |
10 | 9 | fneq1d 6439 | . . 3 ⊢ (𝑅 ∈ *-Ring → ( ∗ Fn 𝐵 ↔ ◡ ∗ Fn 𝐵)) |
11 | 8, 10 | mpbid 234 | . 2 ⊢ (𝑅 ∈ *-Ring → ◡ ∗ Fn 𝐵) |
12 | dff1o4 6616 | . 2 ⊢ ( ∗ :𝐵–1-1-onto→𝐵 ↔ ( ∗ Fn 𝐵 ∧ ◡ ∗ Fn 𝐵)) | |
13 | 8, 11, 12 | sylanbrc 585 | 1 ⊢ (𝑅 ∈ *-Ring → ∗ :𝐵–1-1-onto→𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1536 ∈ wcel 2113 ◡ccnv 5547 Fn wfn 6343 ⟶wf 6344 –1-1-onto→wf1o 6347 ‘cfv 6348 (class class class)co 7149 Basecbs 16476 opprcoppr 19365 RingHom crh 19457 *rfcstf 19607 *-Ringcsr 19608 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1969 ax-7 2014 ax-8 2115 ax-9 2123 ax-10 2144 ax-11 2160 ax-12 2176 ax-ext 2792 ax-rep 5183 ax-sep 5196 ax-nul 5203 ax-pow 5259 ax-pr 5323 ax-un 7454 ax-cnex 10586 ax-resscn 10587 ax-1cn 10588 ax-icn 10589 ax-addcl 10590 ax-addrcl 10591 ax-mulcl 10592 ax-mulrcl 10593 ax-mulcom 10594 ax-addass 10595 ax-mulass 10596 ax-distr 10597 ax-i2m1 10598 ax-1ne0 10599 ax-1rid 10600 ax-rnegex 10601 ax-rrecex 10602 ax-cnre 10603 ax-pre-lttri 10604 ax-pre-lttrn 10605 ax-pre-ltadd 10606 ax-pre-mulgt0 10607 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1083 df-3an 1084 df-tru 1539 df-ex 1780 df-nf 1784 df-sb 2069 df-mo 2621 df-eu 2653 df-clab 2799 df-cleq 2813 df-clel 2892 df-nfc 2962 df-ne 3016 df-nel 3123 df-ral 3142 df-rex 3143 df-reu 3144 df-rab 3146 df-v 3493 df-sbc 3769 df-csb 3877 df-dif 3932 df-un 3934 df-in 3936 df-ss 3945 df-pss 3947 df-nul 4285 df-if 4461 df-pw 4534 df-sn 4561 df-pr 4563 df-tp 4565 df-op 4567 df-uni 4832 df-iun 4914 df-br 5060 df-opab 5122 df-mpt 5140 df-tr 5166 df-id 5453 df-eprel 5458 df-po 5467 df-so 5468 df-fr 5507 df-we 5509 df-xp 5554 df-rel 5555 df-cnv 5556 df-co 5557 df-dm 5558 df-rn 5559 df-res 5560 df-ima 5561 df-pred 6141 df-ord 6187 df-on 6188 df-lim 6189 df-suc 6190 df-iota 6307 df-fun 6350 df-fn 6351 df-f 6352 df-f1 6353 df-fo 6354 df-f1o 6355 df-fv 6356 df-riota 7107 df-ov 7152 df-oprab 7153 df-mpo 7154 df-om 7574 df-wrecs 7940 df-recs 8001 df-rdg 8039 df-er 8282 df-map 8401 df-en 8503 df-dom 8504 df-sdom 8505 df-pnf 10670 df-mnf 10671 df-xr 10672 df-ltxr 10673 df-le 10674 df-sub 10865 df-neg 10866 df-nn 11632 df-2 11694 df-ndx 16479 df-slot 16480 df-base 16482 df-sets 16483 df-plusg 16571 df-0g 16708 df-mhm 17949 df-ghm 18349 df-mgp 19233 df-ur 19245 df-ring 19292 df-rnghom 19460 df-srng 19610 |
This theorem is referenced by: srngcl 19619 srngnvl 19620 iporthcom 20772 |
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