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Theorem indistpsx 22953
Description: The indiscrete topology on a set 𝐴 expressed as a topological space, using explicit structure component references. Compare with indistps 22954 and indistps2 22955. The advantage of this version is that the actual function for the structure is evident, and df-ndx 17218 is not needed, nor any other special definition outside of basic set theory. The disadvantage is that if the indices of the component definitions df-base 17234 and df-tset 17295 are changed in the future, this theorem will also have to be changed. Note: This theorem has hard-coded structure indices for demonstration purposes. It is not intended for general use; use indistps 22954 instead. (New usage is discouraged.) (Contributed by FL, 19-Jul-2006.)
Hypotheses
Ref Expression
indistpsx.a 𝐴 ∈ V
indistpsx.k 𝐾 = {⟨1, 𝐴⟩, ⟨9, {∅, 𝐴}⟩}
Assertion
Ref Expression
indistpsx 𝐾 ∈ TopSp

Proof of Theorem indistpsx
StepHypRef Expression
1 indistpsx.k . . 3 𝐾 = {⟨1, 𝐴⟩, ⟨9, {∅, 𝐴}⟩}
2 basendx 17242 . . . . 5 (Base‘ndx) = 1
32opeq1i 4857 . . . 4 ⟨(Base‘ndx), 𝐴⟩ = ⟨1, 𝐴
4 tsetndx 17371 . . . . 5 (TopSet‘ndx) = 9
54opeq1i 4857 . . . 4 ⟨(TopSet‘ndx), {∅, 𝐴}⟩ = ⟨9, {∅, 𝐴}⟩
63, 5preq12i 4719 . . 3 {⟨(Base‘ndx), 𝐴⟩, ⟨(TopSet‘ndx), {∅, 𝐴}⟩} = {⟨1, 𝐴⟩, ⟨9, {∅, 𝐴}⟩}
71, 6eqtr4i 2762 . 2 𝐾 = {⟨(Base‘ndx), 𝐴⟩, ⟨(TopSet‘ndx), {∅, 𝐴}⟩}
8 indistpsx.a . . . 4 𝐴 ∈ V
9 indistopon 22944 . . . 4 (𝐴 ∈ V → {∅, 𝐴} ∈ (TopOn‘𝐴))
108, 9ax-mp 5 . . 3 {∅, 𝐴} ∈ (TopOn‘𝐴)
1110toponunii 22859 . 2 𝐴 = {∅, 𝐴}
12 indistop 22945 . 2 {∅, 𝐴} ∈ Top
137, 11, 12eltpsi 22887 1 𝐾 ∈ TopSp
Colors of variables: wff setvar class
Syntax hints:   = wceq 1540  wcel 2109  Vcvv 3464  c0 4313  {cpr 4608  cop 4612  cfv 6536  1c1 11135  9c9 12307  ndxcnx 17217  Basecbs 17233  TopSetcts 17282  TopOnctopon 22853  TopSpctps 22875
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 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-10 2142  ax-11 2158  ax-12 2178  ax-ext 2708  ax-rep 5254  ax-sep 5271  ax-nul 5281  ax-pow 5340  ax-pr 5407  ax-un 7734  ax-cnex 11190  ax-resscn 11191  ax-1cn 11192  ax-icn 11193  ax-addcl 11194  ax-addrcl 11195  ax-mulcl 11196  ax-mulrcl 11197  ax-mulcom 11198  ax-addass 11199  ax-mulass 11200  ax-distr 11201  ax-i2m1 11202  ax-1ne0 11203  ax-1rid 11204  ax-rnegex 11205  ax-rrecex 11206  ax-cnre 11207  ax-pre-lttri 11208  ax-pre-lttrn 11209  ax-pre-ltadd 11210  ax-pre-mulgt0 11211
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2066  df-mo 2540  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2810  df-nfc 2886  df-ne 2934  df-nel 3038  df-ral 3053  df-rex 3062  df-reu 3365  df-rab 3421  df-v 3466  df-sbc 3771  df-csb 3880  df-dif 3934  df-un 3936  df-in 3938  df-ss 3948  df-pss 3951  df-nul 4314  df-if 4506  df-pw 4582  df-sn 4607  df-pr 4609  df-op 4613  df-uni 4889  df-iun 4974  df-br 5125  df-opab 5187  df-mpt 5207  df-tr 5235  df-id 5553  df-eprel 5558  df-po 5566  df-so 5567  df-fr 5611  df-we 5613  df-xp 5665  df-rel 5666  df-cnv 5667  df-co 5668  df-dm 5669  df-rn 5670  df-res 5671  df-ima 5672  df-pred 6295  df-ord 6360  df-on 6361  df-lim 6362  df-suc 6363  df-iota 6489  df-fun 6538  df-fn 6539  df-f 6540  df-f1 6541  df-fo 6542  df-f1o 6543  df-fv 6544  df-riota 7367  df-ov 7413  df-oprab 7414  df-mpo 7415  df-om 7867  df-1st 7993  df-2nd 7994  df-frecs 8285  df-wrecs 8316  df-recs 8390  df-rdg 8429  df-1o 8485  df-er 8724  df-en 8965  df-dom 8966  df-sdom 8967  df-fin 8968  df-pnf 11276  df-mnf 11277  df-xr 11278  df-ltxr 11279  df-le 11280  df-sub 11473  df-neg 11474  df-nn 12246  df-2 12308  df-3 12309  df-4 12310  df-5 12311  df-6 12312  df-7 12313  df-8 12314  df-9 12315  df-n0 12507  df-z 12594  df-uz 12858  df-fz 13530  df-struct 17171  df-slot 17206  df-ndx 17218  df-base 17234  df-tset 17295  df-rest 17441  df-topn 17442  df-top 22837  df-topon 22854  df-topsp 22876
This theorem is referenced by: (None)
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