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Theorem fisupclrnmpt 45842
Description: A nonempty finite indexed set contains its supremum. (Contributed by Glauco Siliprandi, 23-Oct-2021.)
Hypotheses
Ref Expression
fisupclrnmpt.x 𝑥𝜑
fisupclrnmpt.r (𝜑𝑅 Or 𝐴)
fisupclrnmpt.b (𝜑𝐵 ∈ Fin)
fisupclrnmpt.n (𝜑𝐵 ≠ ∅)
fisupclrnmpt.c ((𝜑𝑥𝐵) → 𝐶𝐴)
Assertion
Ref Expression
fisupclrnmpt (𝜑 → sup(ran (𝑥𝐵𝐶), 𝐴, 𝑅) ∈ 𝐴)
Distinct variable groups:   𝑥,𝐴   𝑥,𝐵
Allowed substitution hints:   𝜑(𝑥)   𝐶(𝑥)   𝑅(𝑥)

Proof of Theorem fisupclrnmpt
StepHypRef Expression
1 fisupclrnmpt.x . . 3 𝑥𝜑
2 eqid 2739 . . 3 (𝑥𝐵𝐶) = (𝑥𝐵𝐶)
3 fisupclrnmpt.c . . 3 ((𝜑𝑥𝐵) → 𝐶𝐴)
41, 2, 3rnmptssd 7065 . 2 (𝜑 → ran (𝑥𝐵𝐶) ⊆ 𝐴)
5 fisupclrnmpt.r . . 3 (𝜑𝑅 Or 𝐴)
6 fisupclrnmpt.b . . . 4 (𝜑𝐵 ∈ Fin)
72rnmptfi 45618 . . . 4 (𝐵 ∈ Fin → ran (𝑥𝐵𝐶) ∈ Fin)
86, 7syl 17 . . 3 (𝜑 → ran (𝑥𝐵𝐶) ∈ Fin)
9 fisupclrnmpt.n . . . 4 (𝜑𝐵 ≠ ∅)
101, 3, 2, 9rnmptn0 6195 . . 3 (𝜑 → ran (𝑥𝐵𝐶) ≠ ∅)
11 fisupcl 9373 . . 3 ((𝑅 Or 𝐴 ∧ (ran (𝑥𝐵𝐶) ∈ Fin ∧ ran (𝑥𝐵𝐶) ≠ ∅ ∧ ran (𝑥𝐵𝐶) ⊆ 𝐴)) → sup(ran (𝑥𝐵𝐶), 𝐴, 𝑅) ∈ ran (𝑥𝐵𝐶))
125, 8, 10, 4, 11syl13anc 1380 . 2 (𝜑 → sup(ran (𝑥𝐵𝐶), 𝐴, 𝑅) ∈ ran (𝑥𝐵𝐶))
134, 12sseldd 3916 1 (𝜑 → sup(ran (𝑥𝐵𝐶), 𝐴, 𝑅) ∈ 𝐴)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 396  wnf 1790  wcel 2119  wne 2934  wss 3883  c0 4261  cmpt 5153   Or wor 5525  ran crn 5619  Fincfn 8883  supcsup 9343
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1917  ax-6 1974  ax-7 2015  ax-8 2121  ax-9 2129  ax-10 2152  ax-11 2168  ax-12 2189  ax-ext 2711  ax-sep 5218  ax-nul 5228  ax-pow 5294  ax-pr 5362  ax-un 7678
This theorem depends on definitions:  df-bi 208  df-an 397  df-or 854  df-3or 1093  df-3an 1094  df-tru 1550  df-fal 1560  df-ex 1787  df-nf 1791  df-sb 2074  df-mo 2543  df-eu 2573  df-clab 2718  df-cleq 2731  df-clel 2814  df-nfc 2888  df-ne 2935  df-ral 3054  df-rex 3064  df-rmo 3344  df-reu 3345  df-rab 3392  df-v 3433  df-sbc 3724  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-pss 3903  df-nul 4262  df-if 4455  df-pw 4531  df-sn 4556  df-pr 4558  df-op 4562  df-uni 4839  df-br 5073  df-opab 5135  df-mpt 5154  df-tr 5180  df-id 5513  df-eprel 5518  df-po 5526  df-so 5527  df-fr 5571  df-we 5573  df-xp 5624  df-rel 5625  df-cnv 5626  df-co 5627  df-dm 5628  df-rn 5629  df-res 5630  df-ima 5631  df-ord 6313  df-on 6314  df-lim 6315  df-suc 6316  df-iota 6441  df-fun 6487  df-fn 6488  df-f 6489  df-f1 6490  df-fo 6491  df-f1o 6492  df-fv 6493  df-riota 7313  df-om 7807  df-1st 7931  df-2nd 7932  df-1o 8395  df-en 8884  df-dom 8885  df-fin 8887  df-sup 9345
This theorem is referenced by:  uzublem  45873  limsupubuzlem  46155
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