![]() |
Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > ILE Home > Th. List > fneq1i | GIF version |
Description: Equality inference for function predicate with domain. (Contributed by Paul Chapman, 22-Jun-2011.) |
Ref | Expression |
---|---|
fneq1i.1 | ⊢ 𝐹 = 𝐺 |
Ref | Expression |
---|---|
fneq1i | ⊢ (𝐹 Fn 𝐴 ↔ 𝐺 Fn 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fneq1i.1 | . 2 ⊢ 𝐹 = 𝐺 | |
2 | fneq1 5219 | . 2 ⊢ (𝐹 = 𝐺 → (𝐹 Fn 𝐴 ↔ 𝐺 Fn 𝐴)) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐹 Fn 𝐴 ↔ 𝐺 Fn 𝐴) |
Colors of variables: wff set class |
Syntax hints: ↔ wb 104 = wceq 1332 Fn wfn 5126 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-v 2691 df-un 3080 df-in 3082 df-ss 3089 df-sn 3538 df-pr 3539 df-op 3541 df-br 3938 df-opab 3998 df-rel 4554 df-cnv 4555 df-co 4556 df-dm 4557 df-fun 5133 df-fn 5134 |
This theorem is referenced by: fnunsn 5238 fnopabg 5254 f1oun 5395 f1oi 5413 f1osn 5415 ovid 5895 tfri1d 6240 frec2uzrand 10209 frec2uzf1od 10210 frecfzennn 10230 dfrelog 12989 nninfsellemeqinf 13387 |
Copyright terms: Public domain | W3C validator |