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Mirrors > Home > MPE Home > Th. List > f1oeq123d | Structured version Visualization version GIF version |
Description: Equality deduction for one-to-one onto functions. (Contributed by Mario Carneiro, 27-Jan-2017.) |
Ref | Expression |
---|---|
f1eq123d.1 | ⊢ (𝜑 → 𝐹 = 𝐺) |
f1eq123d.2 | ⊢ (𝜑 → 𝐴 = 𝐵) |
f1eq123d.3 | ⊢ (𝜑 → 𝐶 = 𝐷) |
Ref | Expression |
---|---|
f1oeq123d | ⊢ (𝜑 → (𝐹:𝐴–1-1-onto→𝐶 ↔ 𝐺:𝐵–1-1-onto→𝐷)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | f1eq123d.1 | . . 3 ⊢ (𝜑 → 𝐹 = 𝐺) | |
2 | f1oeq1 6579 | . . 3 ⊢ (𝐹 = 𝐺 → (𝐹:𝐴–1-1-onto→𝐶 ↔ 𝐺:𝐴–1-1-onto→𝐶)) | |
3 | 1, 2 | syl 17 | . 2 ⊢ (𝜑 → (𝐹:𝐴–1-1-onto→𝐶 ↔ 𝐺:𝐴–1-1-onto→𝐶)) |
4 | f1eq123d.2 | . . 3 ⊢ (𝜑 → 𝐴 = 𝐵) | |
5 | f1oeq2 6580 | . . 3 ⊢ (𝐴 = 𝐵 → (𝐺:𝐴–1-1-onto→𝐶 ↔ 𝐺:𝐵–1-1-onto→𝐶)) | |
6 | 4, 5 | syl 17 | . 2 ⊢ (𝜑 → (𝐺:𝐴–1-1-onto→𝐶 ↔ 𝐺:𝐵–1-1-onto→𝐶)) |
7 | f1eq123d.3 | . . 3 ⊢ (𝜑 → 𝐶 = 𝐷) | |
8 | f1oeq3 6581 | . . 3 ⊢ (𝐶 = 𝐷 → (𝐺:𝐵–1-1-onto→𝐶 ↔ 𝐺:𝐵–1-1-onto→𝐷)) | |
9 | 7, 8 | syl 17 | . 2 ⊢ (𝜑 → (𝐺:𝐵–1-1-onto→𝐶 ↔ 𝐺:𝐵–1-1-onto→𝐷)) |
10 | 3, 6, 9 | 3bitrd 308 | 1 ⊢ (𝜑 → (𝐹:𝐴–1-1-onto→𝐶 ↔ 𝐺:𝐵–1-1-onto→𝐷)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 = wceq 1538 –1-1-onto→wf1o 6323 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-v 3443 df-un 3886 df-in 3888 df-ss 3898 df-sn 4526 df-pr 4528 df-op 4532 df-br 5031 df-opab 5093 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-rn 5530 df-fun 6326 df-fn 6327 df-f 6328 df-f1 6329 df-fo 6330 df-f1o 6331 |
This theorem is referenced by: f1oprswap 6633 f1oprg 6634 f1ossf1o 6867 cnfcom 9147 ackbij2lem2 9651 s2f1o 14269 s4f1o 14271 idffth 17195 ressffth 17200 symgval 18489 symg1bas 18511 symg2bas 18513 symgfixels 18554 symgfixelsi 18555 rhmf1o 19480 mat1f1o 21083 ushgredgedg 27019 ushgredgedgloop 27021 trlreslem 27489 wlknwwlksnbij 27674 wwlksnextbij 27688 clwlknf1oclwwlkn 27869 eupth0 27999 eupthp1 28001 foresf1o 30273 f1ocnt 30551 symgcom 30777 cycpmcl 30808 cycpmconjslem2 30847 dimkerim 31111 indf1ofs 31395 eulerpartgbij 31740 eulerpartlemn 31749 reprpmtf1o 32007 poimirlem16 35073 poimirlem17 35074 poimirlem19 35076 poimirlem20 35077 poimirlem28 35085 metakunt17 39366 metakunt34 39383 wessf1ornlem 41811 disjf1o 41818 ssnnf1octb 41822 sge0fodjrnlem 43055 f1oresf1orab 43845 isomgr 44341 rnghmf1o 44527 |
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