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Mirrors > Home > ILE Home > Th. List > fveq12i | Unicode version |
Description: Equality deduction for function value. (Contributed by FL, 27-Jun-2014.) |
Ref | Expression |
---|---|
fveq12i.1 | |
fveq12i.2 |
Ref | Expression |
---|---|
fveq12i |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fveq12i.1 | . . 3 | |
2 | 1 | fveq1i 5179 | . 2 |
3 | fveq12i.2 | . . 3 | |
4 | 3 | fveq2i 5181 | . 2 |
5 | 2, 4 | eqtri 2060 | 1 |
Colors of variables: wff set class |
Syntax hints: wceq 1243 cfv 4902 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 |
This theorem depends on definitions: df-bi 110 df-3an 887 df-tru 1246 df-nf 1350 df-sb 1646 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-rex 2312 df-v 2559 df-un 2922 df-sn 3381 df-pr 3382 df-op 3384 df-uni 3581 df-br 3765 df-iota 4867 df-fv 4910 |
This theorem is referenced by: (None) |
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