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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 6763 | . 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 1541 –1-1-onto→wf1o 6491 |
| 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 1911 ax-6 1968 ax-7 2009 ax-9 2123 ax-ext 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1781 df-cleq 2728 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 |
| This theorem is referenced by: f1osng 6816 f1o2sn 7087 fveqf1o 7248 oacomf1o 8492 marypha1lem 9336 oef1o 9607 cnfcomlem 9608 cnfcom2 9611 infxpenc 9928 pwfseqlem5 10574 pwfseq 10575 summolem3 15637 summo 15640 fsum 15643 prodmolem3 15856 prodmo 15859 fprod 15864 gsumvalx 18601 gsumpropd 18603 gsumpropd2lem 18604 gsumval3lem1 19834 gsumval3 19836 cncfcnvcn 24875 isismt 28606 f1ocnt 32880 erdsze2lem1 35397 ismtyval 38001 rngoisoval 38178 lautset 40342 pautsetN 40358 sticksstones3 42402 sticksstones20 42420 eldioph2lem1 43002 imasgim 43342 stoweidlem35 46279 stoweidlem39 46283 3f1oss1 47321 isubgr3stgrlem1 48212 isubgr3stgr 48221 |
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