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Theorem pmtrprfval 17828
Description: The transpositions on a pair. (Contributed by AV, 9-Dec-2018.)
Assertion
Ref Expression
pmtrprfval (pmTrsp‘{1, 2}) = (𝑝 ∈ {{1, 2}} ↦ (𝑧 ∈ {1, 2} ↦ if(𝑧 = 1, 2, 1)))
Distinct variable group:   𝑧,𝑝

Proof of Theorem pmtrprfval
Dummy variable 𝑡 is distinct from all other variables.
StepHypRef Expression
1 prex 4870 . . 3 {1, 2} ∈ V
2 eqid 2621 . . . 4 (pmTrsp‘{1, 2}) = (pmTrsp‘{1, 2})
32pmtrfval 17791 . . 3 ({1, 2} ∈ V → (pmTrsp‘{1, 2}) = (𝑝 ∈ {𝑡 ∈ 𝒫 {1, 2} ∣ 𝑡 ≈ 2𝑜} ↦ (𝑧 ∈ {1, 2} ↦ if(𝑧𝑝, (𝑝 ∖ {𝑧}), 𝑧))))
41, 3ax-mp 5 . 2 (pmTrsp‘{1, 2}) = (𝑝 ∈ {𝑡 ∈ 𝒫 {1, 2} ∣ 𝑡 ≈ 2𝑜} ↦ (𝑧 ∈ {1, 2} ↦ if(𝑧𝑝, (𝑝 ∖ {𝑧}), 𝑧)))
5 1ex 9979 . . . . 5 1 ∈ V
6 2nn0 11253 . . . . 5 2 ∈ ℕ0
7 1ne2 11184 . . . . 5 1 ≠ 2
8 pr2pwpr 13199 . . . . 5 ((1 ∈ V ∧ 2 ∈ ℕ0 ∧ 1 ≠ 2) → {𝑡 ∈ 𝒫 {1, 2} ∣ 𝑡 ≈ 2𝑜} = {{1, 2}})
95, 6, 7, 8mp3an 1421 . . . 4 {𝑡 ∈ 𝒫 {1, 2} ∣ 𝑡 ≈ 2𝑜} = {{1, 2}}
10 eqid 2621 . . . 4 (𝑧 ∈ {1, 2} ↦ if(𝑧𝑝, (𝑝 ∖ {𝑧}), 𝑧)) = (𝑧 ∈ {1, 2} ↦ if(𝑧𝑝, (𝑝 ∖ {𝑧}), 𝑧))
119, 10mpteq12i 4702 . . 3 (𝑝 ∈ {𝑡 ∈ 𝒫 {1, 2} ∣ 𝑡 ≈ 2𝑜} ↦ (𝑧 ∈ {1, 2} ↦ if(𝑧𝑝, (𝑝 ∖ {𝑧}), 𝑧))) = (𝑝 ∈ {{1, 2}} ↦ (𝑧 ∈ {1, 2} ↦ if(𝑧𝑝, (𝑝 ∖ {𝑧}), 𝑧)))
12 elsni 4165 . . . . . 6 (𝑝 ∈ {{1, 2}} → 𝑝 = {1, 2})
13 eleq2 2687 . . . . . . . . 9 (𝑝 = {1, 2} → (𝑧𝑝𝑧 ∈ {1, 2}))
1413biimpar 502 . . . . . . . 8 ((𝑝 = {1, 2} ∧ 𝑧 ∈ {1, 2}) → 𝑧𝑝)
1514iftrued 4066 . . . . . . 7 ((𝑝 = {1, 2} ∧ 𝑧 ∈ {1, 2}) → if(𝑧𝑝, (𝑝 ∖ {𝑧}), 𝑧) = (𝑝 ∖ {𝑧}))
16 elpri 4168 . . . . . . . . 9 (𝑧 ∈ {1, 2} → (𝑧 = 1 ∨ 𝑧 = 2))
17 2ex 11036 . . . . . . . . . . . . 13 2 ∈ V
1817unisn 4417 . . . . . . . . . . . 12 {2} = 2
19 simpr 477 . . . . . . . . . . . . . . 15 ((𝑧 = 1 ∧ 𝑝 = {1, 2}) → 𝑝 = {1, 2})
20 sneq 4158 . . . . . . . . . . . . . . . 16 (𝑧 = 1 → {𝑧} = {1})
2120adantr 481 . . . . . . . . . . . . . . 15 ((𝑧 = 1 ∧ 𝑝 = {1, 2}) → {𝑧} = {1})
2219, 21difeq12d 3707 . . . . . . . . . . . . . 14 ((𝑧 = 1 ∧ 𝑝 = {1, 2}) → (𝑝 ∖ {𝑧}) = ({1, 2} ∖ {1}))
23 difprsn1 4299 . . . . . . . . . . . . . . 15 (1 ≠ 2 → ({1, 2} ∖ {1}) = {2})
247, 23ax-mp 5 . . . . . . . . . . . . . 14 ({1, 2} ∖ {1}) = {2}
2522, 24syl6eq 2671 . . . . . . . . . . . . 13 ((𝑧 = 1 ∧ 𝑝 = {1, 2}) → (𝑝 ∖ {𝑧}) = {2})
2625unieqd 4412 . . . . . . . . . . . 12 ((𝑧 = 1 ∧ 𝑝 = {1, 2}) → (𝑝 ∖ {𝑧}) = {2})
27 iftrue 4064 . . . . . . . . . . . . 13 (𝑧 = 1 → if(𝑧 = 1, 2, 1) = 2)
2827adantr 481 . . . . . . . . . . . 12 ((𝑧 = 1 ∧ 𝑝 = {1, 2}) → if(𝑧 = 1, 2, 1) = 2)
2918, 26, 283eqtr4a 2681 . . . . . . . . . . 11 ((𝑧 = 1 ∧ 𝑝 = {1, 2}) → (𝑝 ∖ {𝑧}) = if(𝑧 = 1, 2, 1))
3029ex 450 . . . . . . . . . 10 (𝑧 = 1 → (𝑝 = {1, 2} → (𝑝 ∖ {𝑧}) = if(𝑧 = 1, 2, 1)))
315unisn 4417 . . . . . . . . . . . 12 {1} = 1
32 simpr 477 . . . . . . . . . . . . . . 15 ((𝑧 = 2 ∧ 𝑝 = {1, 2}) → 𝑝 = {1, 2})
33 sneq 4158 . . . . . . . . . . . . . . . 16 (𝑧 = 2 → {𝑧} = {2})
3433adantr 481 . . . . . . . . . . . . . . 15 ((𝑧 = 2 ∧ 𝑝 = {1, 2}) → {𝑧} = {2})
3532, 34difeq12d 3707 . . . . . . . . . . . . . 14 ((𝑧 = 2 ∧ 𝑝 = {1, 2}) → (𝑝 ∖ {𝑧}) = ({1, 2} ∖ {2}))
36 difprsn2 4300 . . . . . . . . . . . . . . 15 (1 ≠ 2 → ({1, 2} ∖ {2}) = {1})
377, 36ax-mp 5 . . . . . . . . . . . . . 14 ({1, 2} ∖ {2}) = {1}
3835, 37syl6eq 2671 . . . . . . . . . . . . 13 ((𝑧 = 2 ∧ 𝑝 = {1, 2}) → (𝑝 ∖ {𝑧}) = {1})
3938unieqd 4412 . . . . . . . . . . . 12 ((𝑧 = 2 ∧ 𝑝 = {1, 2}) → (𝑝 ∖ {𝑧}) = {1})
407nesymi 2847 . . . . . . . . . . . . . . 15 ¬ 2 = 1
41 eqeq1 2625 . . . . . . . . . . . . . . 15 (𝑧 = 2 → (𝑧 = 1 ↔ 2 = 1))
4240, 41mtbiri 317 . . . . . . . . . . . . . 14 (𝑧 = 2 → ¬ 𝑧 = 1)
4342iffalsed 4069 . . . . . . . . . . . . 13 (𝑧 = 2 → if(𝑧 = 1, 2, 1) = 1)
4443adantr 481 . . . . . . . . . . . 12 ((𝑧 = 2 ∧ 𝑝 = {1, 2}) → if(𝑧 = 1, 2, 1) = 1)
4531, 39, 443eqtr4a 2681 . . . . . . . . . . 11 ((𝑧 = 2 ∧ 𝑝 = {1, 2}) → (𝑝 ∖ {𝑧}) = if(𝑧 = 1, 2, 1))
4645ex 450 . . . . . . . . . 10 (𝑧 = 2 → (𝑝 = {1, 2} → (𝑝 ∖ {𝑧}) = if(𝑧 = 1, 2, 1)))
4730, 46jaoi 394 . . . . . . . . 9 ((𝑧 = 1 ∨ 𝑧 = 2) → (𝑝 = {1, 2} → (𝑝 ∖ {𝑧}) = if(𝑧 = 1, 2, 1)))
4816, 47syl 17 . . . . . . . 8 (𝑧 ∈ {1, 2} → (𝑝 = {1, 2} → (𝑝 ∖ {𝑧}) = if(𝑧 = 1, 2, 1)))
4948impcom 446 . . . . . . 7 ((𝑝 = {1, 2} ∧ 𝑧 ∈ {1, 2}) → (𝑝 ∖ {𝑧}) = if(𝑧 = 1, 2, 1))
5015, 49eqtrd 2655 . . . . . 6 ((𝑝 = {1, 2} ∧ 𝑧 ∈ {1, 2}) → if(𝑧𝑝, (𝑝 ∖ {𝑧}), 𝑧) = if(𝑧 = 1, 2, 1))
5112, 50sylan 488 . . . . 5 ((𝑝 ∈ {{1, 2}} ∧ 𝑧 ∈ {1, 2}) → if(𝑧𝑝, (𝑝 ∖ {𝑧}), 𝑧) = if(𝑧 = 1, 2, 1))
5251mpteq2dva 4704 . . . 4 (𝑝 ∈ {{1, 2}} → (𝑧 ∈ {1, 2} ↦ if(𝑧𝑝, (𝑝 ∖ {𝑧}), 𝑧)) = (𝑧 ∈ {1, 2} ↦ if(𝑧 = 1, 2, 1)))
5352mpteq2ia 4700 . . 3 (𝑝 ∈ {{1, 2}} ↦ (𝑧 ∈ {1, 2} ↦ if(𝑧𝑝, (𝑝 ∖ {𝑧}), 𝑧))) = (𝑝 ∈ {{1, 2}} ↦ (𝑧 ∈ {1, 2} ↦ if(𝑧 = 1, 2, 1)))
5411, 53eqtri 2643 . 2 (𝑝 ∈ {𝑡 ∈ 𝒫 {1, 2} ∣ 𝑡 ≈ 2𝑜} ↦ (𝑧 ∈ {1, 2} ↦ if(𝑧𝑝, (𝑝 ∖ {𝑧}), 𝑧))) = (𝑝 ∈ {{1, 2}} ↦ (𝑧 ∈ {1, 2} ↦ if(𝑧 = 1, 2, 1)))
554, 54eqtri 2643 1 (pmTrsp‘{1, 2}) = (𝑝 ∈ {{1, 2}} ↦ (𝑧 ∈ {1, 2} ↦ if(𝑧 = 1, 2, 1)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wo 383  wa 384   = wceq 1480  wcel 1987  wne 2790  {crab 2911  Vcvv 3186  cdif 3552  ifcif 4058  𝒫 cpw 4130  {csn 4148  {cpr 4150   cuni 4402   class class class wbr 4613  cmpt 4673  cfv 5847  2𝑜c2o 7499  cen 7896  1c1 9881  2c2 11014  0cn0 11236  pmTrspcpmtr 17782
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1719  ax-4 1734  ax-5 1836  ax-6 1885  ax-7 1932  ax-8 1989  ax-9 1996  ax-10 2016  ax-11 2031  ax-12 2044  ax-13 2245  ax-ext 2601  ax-rep 4731  ax-sep 4741  ax-nul 4749  ax-pow 4803  ax-pr 4867  ax-un 6902  ax-cnex 9936  ax-resscn 9937  ax-1cn 9938  ax-icn 9939  ax-addcl 9940  ax-addrcl 9941  ax-mulcl 9942  ax-mulrcl 9943  ax-mulcom 9944  ax-addass 9945  ax-mulass 9946  ax-distr 9947  ax-i2m1 9948  ax-1ne0 9949  ax-1rid 9950  ax-rnegex 9951  ax-rrecex 9952  ax-cnre 9953  ax-pre-lttri 9954  ax-pre-lttrn 9955  ax-pre-ltadd 9956  ax-pre-mulgt0 9957
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1483  df-ex 1702  df-nf 1707  df-sb 1878  df-eu 2473  df-mo 2474  df-clab 2608  df-cleq 2614  df-clel 2617  df-nfc 2750  df-ne 2791  df-nel 2894  df-ral 2912  df-rex 2913  df-reu 2914  df-rmo 2915  df-rab 2916  df-v 3188  df-sbc 3418  df-csb 3515  df-dif 3558  df-un 3560  df-in 3562  df-ss 3569  df-pss 3571  df-nul 3892  df-if 4059  df-pw 4132  df-sn 4149  df-pr 4151  df-tp 4153  df-op 4155  df-uni 4403  df-int 4441  df-iun 4487  df-br 4614  df-opab 4674  df-mpt 4675  df-tr 4713  df-eprel 4985  df-id 4989  df-po 4995  df-so 4996  df-fr 5033  df-we 5035  df-xp 5080  df-rel 5081  df-cnv 5082  df-co 5083  df-dm 5084  df-rn 5085  df-res 5086  df-ima 5087  df-pred 5639  df-ord 5685  df-on 5686  df-lim 5687  df-suc 5688  df-iota 5810  df-fun 5849  df-fn 5850  df-f 5851  df-f1 5852  df-fo 5853  df-f1o 5854  df-fv 5855  df-riota 6565  df-ov 6607  df-oprab 6608  df-mpt2 6609  df-om 7013  df-1st 7113  df-2nd 7114  df-wrecs 7352  df-recs 7413  df-rdg 7451  df-1o 7505  df-2o 7506  df-oadd 7509  df-er 7687  df-en 7900  df-dom 7901  df-sdom 7902  df-fin 7903  df-card 8709  df-cda 8934  df-pnf 10020  df-mnf 10021  df-xr 10022  df-ltxr 10023  df-le 10024  df-sub 10212  df-neg 10213  df-nn 10965  df-2 11023  df-n0 11237  df-z 11322  df-uz 11632  df-fz 12269  df-hash 13058  df-pmtr 17783
This theorem is referenced by:  pmtrprfvalrn  17829
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