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Theorem opelstrbas 13345
Description: The base set of a structure with a base set. (Contributed by AV, 10-Nov-2021.)
Hypotheses
Ref Expression
opelstrbas.s (𝜑𝑆 Struct 𝑋)
opelstrbas.v (𝜑𝑉𝑌)
opelstrbas.b (𝜑 → ⟨(Base‘ndx), 𝑉⟩ ∈ 𝑆)
Assertion
Ref Expression
opelstrbas (𝜑𝑉 = (Base‘𝑆))

Proof of Theorem opelstrbas
StepHypRef Expression
1 baseslid 13287 . 2 (Base = Slot (Base‘ndx) ∧ (Base‘ndx) ∈ ℕ)
2 opelstrbas.s . 2 (𝜑𝑆 Struct 𝑋)
3 opelstrbas.v . 2 (𝜑𝑉𝑌)
4 opelstrbas.b . 2 (𝜑 → ⟨(Base‘ndx), 𝑉⟩ ∈ 𝑆)
51, 2, 3, 4opelstrsl 13344 1 (𝜑𝑉 = (Base‘𝑆))
Colors of variables: wff set class
Syntax hints:  wi 4   = wceq 1398  wcel 2205  cop 3694   class class class wbr 4111  cfv 5354   Struct cstr 13225  ndxcnx 13226  Basecbs 13229
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-in1 619  ax-in2 620  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2207  ax-14 2208  ax-ext 2216  ax-sep 4230  ax-pow 4289  ax-pr 4324  ax-un 4556  ax-cnex 8220  ax-resscn 8221  ax-1re 8223  ax-addrcl 8226
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2085  df-mo 2086  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ne 2415  df-ral 2527  df-rex 2528  df-rab 2531  df-v 2817  df-sbc 3045  df-dif 3215  df-un 3217  df-in 3219  df-ss 3226  df-nul 3511  df-pw 3673  df-sn 3697  df-pr 3698  df-op 3700  df-uni 3917  df-int 3952  df-br 4112  df-opab 4174  df-mpt 4175  df-id 4416  df-xp 4757  df-rel 4758  df-cnv 4759  df-co 4760  df-dm 4761  df-rn 4762  df-res 4763  df-iota 5314  df-fun 5356  df-fv 5362  df-inn 9240  df-struct 13231  df-ndx 13232  df-slot 13233  df-base 13235
This theorem is referenced by:  2strbas1g  13353  rngbaseg  13366  srngbased  13377  lmodbased  13395  ipsbased  13407  topgrpbasd  13427  psrbasg  14846  basvtxval2dom  16046
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