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Theorem setsplusg 19557
Description: The other components of an extensible structure remain unchanged if the +g component is set/substituted. (Contributed by Stefan O'Rear, 26-Aug-2015.) Generalisation of the former oppglem and mgplem. (Revised by AV, 18-Oct-2024.)
Hypotheses
Ref Expression
setsplusg.o 𝑂 = (𝑅 sSet ⟨(+g‘ndx), 𝑆⟩)
setsplusg.e 𝐸 = Slot (𝐸‘ndx)
setsplusg.i (𝐸‘ndx) ≠ (+g‘ndx)
Assertion
Ref Expression
setsplusg (𝐸‘𝑅) = (𝐸‘𝑂)

Proof of Theorem setsplusg
StepHypRef Expression
1 setsplusg.e . . 3 𝐸 = Slot (𝐸‘ndx)
2 setsplusg.i . . 3 (𝐸‘ndx) ≠ (+g‘ndx)
31, 2setsnid 17379 . 2 (𝐸‘𝑅) = (𝐸‘(𝑅 sSet ⟨(+g‘ndx), 𝑆⟩))
4 setsplusg.o . . 3 𝑂 = (𝑅 sSet ⟨(+g‘ndx), 𝑆⟩)
54fveq2i 6886 . 2 (𝐸‘𝑂) = (𝐸‘(𝑅 sSet ⟨(+g‘ndx), 𝑆⟩))
63, 5eqtr4i 2787 1 (𝐸‘𝑅) = (𝐸‘𝑂)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   = wceq 1570   ≠ wne 2956  ⟨cop 4590  ‘cfv 6537  (class class class)co 7418   sSet csts 17334  Slot cslot 17352  ndxcnx 17364  +gcplusg 17421
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 2213  ax-ext 2733  ax-sep 5249  ax-nul 5260  ax-pr 5391  ax-un 7749
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 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3078  df-rex 3088  df-rab 3414  df-v 3453  df-sbc 3740  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-br 5104  df-opab 5168  df-mpt 5187  df-id 5546  df-xp 5657  df-rel 5658  df-cnv 5659  df-co 5660  df-dm 5661  df-res 5663  df-iota 6493  df-fun 6539  df-fv 6545  df-ov 7421  df-oprab 7422  df-mpo 7423  df-sets 17335  df-slot 17353
This theorem is used by:  oppgbas  19558  oppgtset  19559  oppgle  19574  mgpbas  20358  mgpsca  20359  mgptset  20360  mgpds  20362
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