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Theorem lpsscls 7742
Description: The limits points of a subset are included in the subset's closure.
Hypothesis
Ref Expression
lpfval.1 |- X = U.J
Assertion
Ref Expression
lpsscls |- ((J e. Top /\ S (_ X) -> ((limPt` J)` S) (_ ((cls` J)` S))

Proof of Theorem lpsscls
StepHypRef Expression
1 lpfval.1 . . 3 |- X = U.J
21lpval 7740 . 2 |- ((J e. Top /\ S (_ X) -> ((limPt` J)` S) = {x | x e. ((cls` J)` (S \ {x}))})
3 difss 2170 . . . . 5 |- (S \ {x}) (_ S
41clsss 7684 . . . . 5 |- ((J e. Top /\ S (_ X /\ (S \ {x}) (_ S) -> ((cls`
J)` (S \ {x})) (_ ((cls` J)` S))
53, 4mp3an3 907 . . . 4 |- ((J e. Top /\ S (_ X) -> ((cls` J)` (S \ {x})) (_ ((cls`
J)` S))
65sseld 2070 . . 3 |- ((J e. Top /\ S (_ X) -> (x e. ((cls` J)` (S \ {x})) -> x e. ((cls` J)` S)))
76abssdv 2124 . 2 |- ((J e. Top /\ S (_ X) -> {x | x e. ((cls` J)` (S \ {x}))} (_ ((cls` J)` S))
82, 7eqsstrd 2098 1 |- ((J e. Top /\ S (_ X) -> ((limPt` J)` S) (_ ((cls` J)` S))
Colors of variables: wff set class
Syntax hints:   -> wi 3   /\ wa 223   = wceq 958   e. wcel 960  {cab 1466   \ cdif 2047   (_ wss 2050  {csn 2413  U.cuni 2507  ` cfv 3188  Topctop 7590  clsccl 7659  limPtclp 7737
This theorem is referenced by:  lpss 7743  clslp 7745
This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7  ax-7 964  ax-gen 965  ax-8 966  ax-9 967  ax-10 968  ax-11 969  ax-12 970  ax-13 971  ax-14 972  ax-17 973  ax-4 975  ax-5o 977  ax-6o 980  ax-9o 1125  ax-10o 1142  ax-16 1212  ax-11o 1220  ax-ext 1462  ax-rep 2698  ax-sep 2708  ax-pow 2748  ax-pr 2785  ax-un 2872
This theorem depends on definitions:  df-bi 147  df-or 224  df-an 225  df-3an 779  df-ex 983  df-sb 1174  df-eu 1384  df-mo 1385  df-clab 1467  df-cleq 1472  df-clel 1475  df-ne 1590  df-ral 1652  df-rex 1653  df-rab 1655  df-v 1815  df-dif 2052  df-un 2053  df-in 2054  df-ss 2056  df-nul 2284  df-pw 2406  df-sn 2416  df-pr 2417  df-op 2420  df-uni 2508  df-int 2538  df-br 2625  df-opab 2672  df-id 2841  df-xp 3190  df-rel 3191  df-cnv 3192  df-co 3193  df-dm 3194  df-rn 3195  df-res 3196  df-ima 3197  df-fun 3198  df-fn 3199  df-fv 3204  df-top 7594  df-cld 7660  df-cls 7662  df-lp 7738
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