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Theorem mntf 33067
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 2736 . . . 4 (le‘𝑉) = (le‘𝑉)
4 eqid 2736 . . . 4 (le‘𝑊) = (le‘𝑊)
51, 2, 3, 4ismnt 33065 . . 3 ((𝑉𝑋𝑊𝑌) → (𝐹 ∈ (𝑉Monot𝑊) ↔ (𝐹:𝐴𝐵 ∧ ∀𝑥𝐴𝑦𝐴 (𝑥(le‘𝑉)𝑦 → (𝐹𝑥)(le‘𝑊)(𝐹𝑦)))))
65biimp3a 1471 . 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 1086   = wceq 1541  wcel 2113  wral 3051   class class class wbr 5098  wf 6488  cfv 6492  (class class class)co 7358  Basecbs 17136  lecple 17184  Monotcmnt 33060
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-10 2146  ax-11 2162  ax-12 2184  ax-ext 2708  ax-sep 5241  ax-nul 5251  ax-pow 5310  ax-pr 5377  ax-un 7680
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3061  df-rab 3400  df-v 3442  df-sbc 3741  df-csb 3850  df-dif 3904  df-un 3906  df-in 3908  df-ss 3918  df-nul 4286  df-if 4480  df-pw 4556  df-sn 4581  df-pr 4583  df-op 4587  df-uni 4864  df-br 5099  df-opab 5161  df-id 5519  df-xp 5630  df-rel 5631  df-cnv 5632  df-co 5633  df-dm 5634  df-rn 5635  df-iota 6448  df-fun 6494  df-fn 6495  df-f 6496  df-fv 6500  df-ov 7361  df-oprab 7362  df-mpo 7363  df-map 8765  df-mnt 33062
This theorem is referenced by:  mgcmntco  33076
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