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Mirrors > Home > MPE Home > Th. List > efmndbasabf | Structured version Visualization version GIF version |
Description: The base set of the monoid of endofunctions on class 𝐴 is the set of functions from 𝐴 into itself. (Contributed by AV, 29-Mar-2024.) |
Ref | Expression |
---|---|
efmndbas.g | ⊢ 𝐺 = (EndoFMnd‘𝐴) |
efmndbas.b | ⊢ 𝐵 = (Base‘𝐺) |
Ref | Expression |
---|---|
efmndbasabf | ⊢ 𝐵 = {𝑓 ∣ 𝑓:𝐴⟶𝐴} |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | efmndbas.g | . . . 4 ⊢ 𝐺 = (EndoFMnd‘𝐴) | |
2 | efmndbas.b | . . . 4 ⊢ 𝐵 = (Base‘𝐺) | |
3 | 1, 2 | efmndbas 18606 | . . 3 ⊢ 𝐵 = (𝐴 ↑m 𝐴) |
4 | mapvalg 8696 | . . . 4 ⊢ ((𝐴 ∈ V ∧ 𝐴 ∈ V) → (𝐴 ↑m 𝐴) = {𝑓 ∣ 𝑓:𝐴⟶𝐴}) | |
5 | 4 | anidms 567 | . . 3 ⊢ (𝐴 ∈ V → (𝐴 ↑m 𝐴) = {𝑓 ∣ 𝑓:𝐴⟶𝐴}) |
6 | 3, 5 | eqtrid 2788 | . 2 ⊢ (𝐴 ∈ V → 𝐵 = {𝑓 ∣ 𝑓:𝐴⟶𝐴}) |
7 | base0 17014 | . . . 4 ⊢ ∅ = (Base‘∅) | |
8 | 7 | eqcomi 2745 | . . 3 ⊢ (Base‘∅) = ∅ |
9 | fvprc 6817 | . . . . . 6 ⊢ (¬ 𝐴 ∈ V → (EndoFMnd‘𝐴) = ∅) | |
10 | 1, 9 | eqtrid 2788 | . . . . 5 ⊢ (¬ 𝐴 ∈ V → 𝐺 = ∅) |
11 | 10 | fveq2d 6829 | . . . 4 ⊢ (¬ 𝐴 ∈ V → (Base‘𝐺) = (Base‘∅)) |
12 | 2, 11 | eqtrid 2788 | . . 3 ⊢ (¬ 𝐴 ∈ V → 𝐵 = (Base‘∅)) |
13 | mapprc 8690 | . . 3 ⊢ (¬ 𝐴 ∈ V → {𝑓 ∣ 𝑓:𝐴⟶𝐴} = ∅) | |
14 | 8, 12, 13 | 3eqtr4a 2802 | . 2 ⊢ (¬ 𝐴 ∈ V → 𝐵 = {𝑓 ∣ 𝑓:𝐴⟶𝐴}) |
15 | 6, 14 | pm2.61i 182 | 1 ⊢ 𝐵 = {𝑓 ∣ 𝑓:𝐴⟶𝐴} |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 = wceq 1540 ∈ wcel 2105 {cab 2713 Vcvv 3441 ∅c0 4269 ⟶wf 6475 ‘cfv 6479 (class class class)co 7337 ↑m cmap 8686 Basecbs 17009 EndoFMndcefmnd 18603 |
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 1912 ax-6 1970 ax-7 2010 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2153 ax-12 2170 ax-ext 2707 ax-sep 5243 ax-nul 5250 ax-pow 5308 ax-pr 5372 ax-un 7650 ax-cnex 11028 ax-resscn 11029 ax-1cn 11030 ax-icn 11031 ax-addcl 11032 ax-addrcl 11033 ax-mulcl 11034 ax-mulrcl 11035 ax-mulcom 11036 ax-addass 11037 ax-mulass 11038 ax-distr 11039 ax-i2m1 11040 ax-1ne0 11041 ax-1rid 11042 ax-rnegex 11043 ax-rrecex 11044 ax-cnre 11045 ax-pre-lttri 11046 ax-pre-lttrn 11047 ax-pre-ltadd 11048 ax-pre-mulgt0 11049 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1781 df-nf 1785 df-sb 2067 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2886 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-reu 3350 df-rab 3404 df-v 3443 df-sbc 3728 df-csb 3844 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3917 df-nul 4270 df-if 4474 df-pw 4549 df-sn 4574 df-pr 4576 df-tp 4578 df-op 4580 df-uni 4853 df-iun 4943 df-br 5093 df-opab 5155 df-mpt 5176 df-tr 5210 df-id 5518 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5575 df-we 5577 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6238 df-ord 6305 df-on 6306 df-lim 6307 df-suc 6308 df-iota 6431 df-fun 6481 df-fn 6482 df-f 6483 df-f1 6484 df-fo 6485 df-f1o 6486 df-fv 6487 df-riota 7293 df-ov 7340 df-oprab 7341 df-mpo 7342 df-om 7781 df-1st 7899 df-2nd 7900 df-frecs 8167 df-wrecs 8198 df-recs 8272 df-rdg 8311 df-1o 8367 df-er 8569 df-map 8688 df-en 8805 df-dom 8806 df-sdom 8807 df-fin 8808 df-pnf 11112 df-mnf 11113 df-xr 11114 df-ltxr 11115 df-le 11116 df-sub 11308 df-neg 11309 df-nn 12075 df-2 12137 df-3 12138 df-4 12139 df-5 12140 df-6 12141 df-7 12142 df-8 12143 df-9 12144 df-n0 12335 df-z 12421 df-uz 12684 df-fz 13341 df-struct 16945 df-slot 16980 df-ndx 16992 df-base 17010 df-plusg 17072 df-tset 17078 df-efmnd 18604 |
This theorem is referenced by: elefmndbas2 18609 symgbas 19074 |
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