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| Mirrors > Home > MPE Home > Th. List > f1oeq2d | Structured version Visualization version GIF version | ||
| Description: Equality deduction for one-to-one onto functions. (Contributed by Glauco Siliprandi, 17-Aug-2020.) |
| Ref | Expression |
|---|---|
| f1oeq2d.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| f1oeq2d | ⊢ (𝜑 → (𝐹:𝐴–1-1-onto→𝐶 ↔ 𝐹:𝐵–1-1-onto→𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | f1oeq2d.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | f1oeq2 6771 | . 2 ⊢ (𝐴 = 𝐵 → (𝐹:𝐴–1-1-onto→𝐶 ↔ 𝐹:𝐵–1-1-onto→𝐶)) | |
| 3 | 1, 2 | syl 17 | 1 ⊢ (𝜑 → (𝐹:𝐴–1-1-onto→𝐶 ↔ 𝐹:𝐵–1-1-onto→𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 = wceq 1542 –1-1-onto→wf1o 6499 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-9 2124 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-cleq 2729 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 |
| This theorem is referenced by: f1osng 6824 f1o2sn 7097 fveqf1o 7258 oacomf1o 8502 marypha1lem 9348 oef1o 9619 cnfcomlem 9620 cnfcom2 9623 infxpenc 9940 pwfseqlem5 10586 pwfseq 10587 summolem3 15649 summo 15652 fsum 15655 prodmolem3 15868 prodmo 15871 fprod 15876 gsumvalx 18613 gsumpropd 18615 gsumpropd2lem 18616 gsumval3lem1 19846 gsumval3 19848 cncfcnvcn 24887 isismt 28618 f1ocnt 32891 erdsze2lem1 35419 ismtyval 38051 rngoisoval 38228 lautset 40458 pautsetN 40474 sticksstones3 42518 sticksstones20 42536 eldioph2lem1 43117 imasgim 43457 stoweidlem35 46393 stoweidlem39 46397 3f1oss1 47435 isubgr3stgrlem1 48326 isubgr3stgr 48335 |
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