![]() |
Mathbox for Richard Penner |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > Mathboxes > dfrcl4 | Structured version Visualization version GIF version |
Description: Reflexive closure of a relation as indexed union of powers of the relation. (Contributed by RP, 8-Jun-2020.) |
Ref | Expression |
---|---|
dfrcl4 | ⊢ r* = (𝑟 ∈ V ↦ ∪ 𝑛 ∈ {0, 1} (𝑟↑𝑟𝑛)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfrcl3 42412 | . 2 ⊢ r* = (𝑟 ∈ V ↦ ((𝑟↑𝑟0) ∪ (𝑟↑𝑟1))) | |
2 | df-pr 4631 | . . . . 5 ⊢ {0, 1} = ({0} ∪ {1}) | |
3 | iuneq1 5013 | . . . . 5 ⊢ ({0, 1} = ({0} ∪ {1}) → ∪ 𝑛 ∈ {0, 1} (𝑟↑𝑟𝑛) = ∪ 𝑛 ∈ ({0} ∪ {1})(𝑟↑𝑟𝑛)) | |
4 | 2, 3 | ax-mp 5 | . . . 4 ⊢ ∪ 𝑛 ∈ {0, 1} (𝑟↑𝑟𝑛) = ∪ 𝑛 ∈ ({0} ∪ {1})(𝑟↑𝑟𝑛) |
5 | iunxun 5097 | . . . 4 ⊢ ∪ 𝑛 ∈ ({0} ∪ {1})(𝑟↑𝑟𝑛) = (∪ 𝑛 ∈ {0} (𝑟↑𝑟𝑛) ∪ ∪ 𝑛 ∈ {1} (𝑟↑𝑟𝑛)) | |
6 | c0ex 11205 | . . . . . 6 ⊢ 0 ∈ V | |
7 | oveq2 7414 | . . . . . 6 ⊢ (𝑛 = 0 → (𝑟↑𝑟𝑛) = (𝑟↑𝑟0)) | |
8 | 6, 7 | iunxsn 5094 | . . . . 5 ⊢ ∪ 𝑛 ∈ {0} (𝑟↑𝑟𝑛) = (𝑟↑𝑟0) |
9 | 1ex 11207 | . . . . . 6 ⊢ 1 ∈ V | |
10 | oveq2 7414 | . . . . . 6 ⊢ (𝑛 = 1 → (𝑟↑𝑟𝑛) = (𝑟↑𝑟1)) | |
11 | 9, 10 | iunxsn 5094 | . . . . 5 ⊢ ∪ 𝑛 ∈ {1} (𝑟↑𝑟𝑛) = (𝑟↑𝑟1) |
12 | 8, 11 | uneq12i 4161 | . . . 4 ⊢ (∪ 𝑛 ∈ {0} (𝑟↑𝑟𝑛) ∪ ∪ 𝑛 ∈ {1} (𝑟↑𝑟𝑛)) = ((𝑟↑𝑟0) ∪ (𝑟↑𝑟1)) |
13 | 4, 5, 12 | 3eqtri 2765 | . . 3 ⊢ ∪ 𝑛 ∈ {0, 1} (𝑟↑𝑟𝑛) = ((𝑟↑𝑟0) ∪ (𝑟↑𝑟1)) |
14 | 13 | mpteq2i 5253 | . 2 ⊢ (𝑟 ∈ V ↦ ∪ 𝑛 ∈ {0, 1} (𝑟↑𝑟𝑛)) = (𝑟 ∈ V ↦ ((𝑟↑𝑟0) ∪ (𝑟↑𝑟1))) |
15 | 1, 14 | eqtr4i 2764 | 1 ⊢ r* = (𝑟 ∈ V ↦ ∪ 𝑛 ∈ {0, 1} (𝑟↑𝑟𝑛)) |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1542 Vcvv 3475 ∪ cun 3946 {csn 4628 {cpr 4630 ∪ ciun 4997 ↦ cmpt 5231 (class class class)co 7406 0cc0 11107 1c1 11108 ↑𝑟crelexp 14963 r*crcl 42409 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-10 2138 ax-11 2155 ax-12 2172 ax-ext 2704 ax-sep 5299 ax-nul 5306 ax-pow 5363 ax-pr 5427 ax-un 7722 ax-cnex 11163 ax-resscn 11164 ax-1cn 11165 ax-icn 11166 ax-addcl 11167 ax-addrcl 11168 ax-mulcl 11169 ax-mulrcl 11170 ax-mulcom 11171 ax-addass 11172 ax-mulass 11173 ax-distr 11174 ax-i2m1 11175 ax-1ne0 11176 ax-1rid 11177 ax-rnegex 11178 ax-rrecex 11179 ax-cnre 11180 ax-pre-lttri 11181 ax-pre-lttrn 11182 ax-pre-ltadd 11183 ax-pre-mulgt0 11184 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1783 df-nf 1787 df-sb 2069 df-mo 2535 df-eu 2564 df-clab 2711 df-cleq 2725 df-clel 2811 df-nfc 2886 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-reu 3378 df-rab 3434 df-v 3477 df-sbc 3778 df-csb 3894 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-pss 3967 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-op 4635 df-uni 4909 df-int 4951 df-iun 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5574 df-eprel 5580 df-po 5588 df-so 5589 df-fr 5631 df-we 5633 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-pred 6298 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6493 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-riota 7362 df-ov 7409 df-oprab 7410 df-mpo 7411 df-om 7853 df-2nd 7973 df-frecs 8263 df-wrecs 8294 df-recs 8368 df-rdg 8407 df-er 8700 df-en 8937 df-dom 8938 df-sdom 8939 df-pnf 11247 df-mnf 11248 df-xr 11249 df-ltxr 11250 df-le 11251 df-sub 11443 df-neg 11444 df-nn 12210 df-n0 12470 df-z 12556 df-uz 12820 df-seq 13964 df-relexp 14964 df-rcl 42410 |
This theorem is referenced by: brfvrcld 42428 fvrcllb0d 42430 fvrcllb0da 42431 fvrcllb1d 42432 corclrcl 42444 corcltrcl 42476 cotrclrcl 42479 |
Copyright terms: Public domain | W3C validator |