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Theorem atssbase 40171
Description: The set of atoms is a subset of the base set. (atssch 32832 analog.) (Contributed by NM, 21-Oct-2011.)
Hypotheses
Ref Expression
atombase.b 𝐵 = (Base‘𝐾)
atombase.a 𝐴 = (Atoms‘𝐾)
Assertion
Ref Expression
atssbase 𝐴𝐵

Proof of Theorem atssbase
Dummy variable 𝑥 is distinct from all other variables.
StepHypRef Expression
1 atombase.b . . 3 𝐵 = (Base‘𝐾)
2 atombase.a . . 3 𝐴 = (Atoms‘𝐾)
31, 2atbase 40170 . 2 (𝑥𝐴𝑥𝐵)
43ssriv 3938 1 𝐴𝐵
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   = wceq 1570  wss 3902  cfv 6537  Basecbs 17307  Atomscatm 40144
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2215  ax-ext 2734  ax-sep 5255  ax-nul 5267  ax-pr 5402
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2566  df-eu 2596  df-clab 2741  df-cleq 2754  df-clel 2837  df-nfc 2911  df-ne 2958  df-ral 3079  df-rex 3089  df-rab 3415  df-v 3455  df-dif 3905  df-un 3907  df-in 3909  df-ss 3919  df-nul 4283  df-if 4486  df-pw 4562  df-sn 4588  df-pr 4590  df-op 4594  df-uni 4871  df-br 5108  df-opab 5172  df-mpt 5191  df-id 5554  df-xp 5665  df-rel 5666  df-cnv 5667  df-co 5668  df-dm 5669  df-iota 6493  df-fun 6539  df-fv 6545  df-ats 40148
This theorem is used by:  atlatmstc  40200  atlatle  40201  pmapssbaN  40641  pmaple  40642  polsubN  40788  2polvalN  40795  2polssN  40796  3polN  40797  2pmaplubN  40807  paddunN  40808  poldmj1N  40809  pnonsingN  40814  ispsubcl2N  40828  psubclinN  40829  paddatclN  40830  polsubclN  40833  poml4N  40834
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