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Theorem rrgss 14286
Description: Left-regular elements are a subset of the base set. (Contributed by Stefan O'Rear, 22-Mar-2015.)
Hypotheses
Ref Expression
rrgss.e 𝐸 = (RLReg‘𝑅)
rrgss.b 𝐵 = (Base‘𝑅)
Assertion
Ref Expression
rrgss 𝐸𝐵

Proof of Theorem rrgss
Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 rrgss.e . . 3 𝐸 = (RLReg‘𝑅)
2 rrgss.b . . 3 𝐵 = (Base‘𝑅)
3 eqid 2231 . . 3 (.r𝑅) = (.r𝑅)
4 eqid 2231 . . 3 (0g𝑅) = (0g𝑅)
51, 2, 3, 4rrgval 14282 . 2 𝐸 = {𝑥𝐵 ∣ ∀𝑦𝐵 ((𝑥(.r𝑅)𝑦) = (0g𝑅) → 𝑦 = (0g𝑅))}
65ssrab3 3313 1 𝐸𝐵
Colors of variables: wff set class
Syntax hints:  wi 4   = wceq 1397  wral 2510  wss 3200  cfv 5326  (class class class)co 6018  Basecbs 13087  .rcmulr 13166  0gc0g 13344  RLRegcrlreg 14275
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299  ax-un 4530  ax-cnex 8123  ax-resscn 8124  ax-1re 8126  ax-addrcl 8129
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ral 2515  df-rex 2516  df-rab 2519  df-v 2804  df-sbc 3032  df-csb 3128  df-un 3204  df-in 3206  df-ss 3213  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-int 3929  df-br 4089  df-opab 4151  df-mpt 4152  df-id 4390  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-rn 4736  df-res 4737  df-iota 5286  df-fun 5328  df-fn 5329  df-fv 5334  df-ov 6021  df-inn 9144  df-ndx 13090  df-slot 13091  df-base 13093  df-rlreg 14278
This theorem is referenced by:  znrrg  14680
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