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Mirrors > Home > MPE Home > Th. List > feq2i | Structured version Visualization version GIF version |
Description: Equality inference for functions. (Contributed by NM, 5-Sep-2011.) |
Ref | Expression |
---|---|
feq2i.1 | ⊢ 𝐴 = 𝐵 |
Ref | Expression |
---|---|
feq2i | ⊢ (𝐹:𝐴⟶𝐶 ↔ 𝐹:𝐵⟶𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | feq2i.1 | . 2 ⊢ 𝐴 = 𝐵 | |
2 | feq2 6490 | . 2 ⊢ (𝐴 = 𝐵 → (𝐹:𝐴⟶𝐶 ↔ 𝐹:𝐵⟶𝐶)) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐹:𝐴⟶𝐶 ↔ 𝐹:𝐵⟶𝐶) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 208 = wceq 1533 ⟶wf 6345 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-9 2120 ax-ext 2793 |
This theorem depends on definitions: df-bi 209 df-an 399 df-ex 1777 df-cleq 2814 df-fn 6352 df-f 6353 |
This theorem is referenced by: fresaun 6543 fmpox 7759 fmpo 7760 tposf 7914 issmo 7979 axdc3lem4 9869 cardf 9966 smobeth 10002 seqf2 13383 hashfxnn0 13691 snopiswrd 13864 iswrddm0 13882 s1dm 13956 s2dm 14246 ntrivcvgtail 15250 vdwlem8 16318 0ram 16350 gsumws1 17996 ga0 18422 efgsp1 18857 efgsfo 18859 efgredleme 18863 efgred 18868 ablfaclem2 19202 islinds2 20951 pmatcollpw3fi1lem1 21388 0met 22970 dvef 24571 dvfsumrlim2 24623 dchrisum0 26090 trgcgrg 26295 tgcgr4 26311 axlowdimlem4 26725 uhgr0e 26850 vtxdumgrval 27262 wlkp1 27457 pthdlem2 27543 0wlk 27889 0spth 27899 0clwlkv 27904 wlk2v2e 27930 wlkl0 28140 padct 30449 mbfmcnt 31521 coinfliprv 31735 noxp1o 33165 matunitlindf 34884 fdc 35014 grposnOLD 35154 rabren3dioph 39405 amgm2d 40544 amgm3d 40545 fco3 41484 fourierdlem80 42465 sge0iun 42695 0ome 42805 issmflem 42998 2ffzoeq 43522 nnsum4primesodd 43955 nnsum4primesoddALTV 43956 nnsum4primeseven 43959 nnsum4primesevenALTV 43960 line2x 44735 line2y 44736 amgmw2d 44899 |
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