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Theorem mntf 32958
Description: A monotone function is a function. (Contributed by Thierry Arnoux, 24-Apr-2024.)
Hypotheses
Ref Expression
mntf.1 𝐴 = (Base‘𝑉)
mntf.2 𝐵 = (Base‘𝑊)
Assertion
Ref Expression
mntf ((𝑉𝑋𝑊𝑌𝐹 ∈ (𝑉Monot𝑊)) → 𝐹:𝐴𝐵)

Proof of Theorem mntf
Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 mntf.1 . . . 4 𝐴 = (Base‘𝑉)
2 mntf.2 . . . 4 𝐵 = (Base‘𝑊)
3 eqid 2740 . . . 4 (le‘𝑉) = (le‘𝑉)
4 eqid 2740 . . . 4 (le‘𝑊) = (le‘𝑊)
51, 2, 3, 4ismnt 32956 . . 3 ((𝑉𝑋𝑊𝑌) → (𝐹 ∈ (𝑉Monot𝑊) ↔ (𝐹:𝐴𝐵 ∧ ∀𝑥𝐴𝑦𝐴 (𝑥(le‘𝑉)𝑦 → (𝐹𝑥)(le‘𝑊)(𝐹𝑦)))))
65biimp3a 1469 . 2 ((𝑉𝑋𝑊𝑌𝐹 ∈ (𝑉Monot𝑊)) → (𝐹:𝐴𝐵 ∧ ∀𝑥𝐴𝑦𝐴 (𝑥(le‘𝑉)𝑦 → (𝐹𝑥)(le‘𝑊)(𝐹𝑦))))
76simpld 494 1 ((𝑉𝑋𝑊𝑌𝐹 ∈ (𝑉Monot𝑊)) → 𝐹:𝐴𝐵)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  w3a 1087   = wceq 1537  wcel 2108  wral 3067   class class class wbr 5166  wf 6569  cfv 6573  (class class class)co 7448  Basecbs 17258  lecple 17318  Monotcmnt 32951
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1793  ax-4 1807  ax-5 1909  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2158  ax-12 2178  ax-ext 2711  ax-sep 5317  ax-nul 5324  ax-pow 5383  ax-pr 5447  ax-un 7770
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 847  df-3an 1089  df-tru 1540  df-fal 1550  df-ex 1778  df-nf 1782  df-sb 2065  df-mo 2543  df-eu 2572  df-clab 2718  df-cleq 2732  df-clel 2819  df-nfc 2895  df-ne 2947  df-ral 3068  df-rex 3077  df-rab 3444  df-v 3490  df-sbc 3805  df-csb 3922  df-dif 3979  df-un 3981  df-in 3983  df-ss 3993  df-nul 4353  df-if 4549  df-pw 4624  df-sn 4649  df-pr 4651  df-op 4655  df-uni 4932  df-br 5167  df-opab 5229  df-id 5593  df-xp 5706  df-rel 5707  df-cnv 5708  df-co 5709  df-dm 5710  df-rn 5711  df-iota 6525  df-fun 6575  df-fn 6576  df-f 6577  df-fv 6581  df-ov 7451  df-oprab 7452  df-mpo 7453  df-map 8886  df-mnt 32953
This theorem is referenced by:  mgcmntco  32967
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