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Mirrors > Home > MPE Home > Th. List > 3brtr3g | Structured version Visualization version GIF version |
Description: Substitution of equality into both sides of a binary relation. (Contributed by NM, 16-Jan-1997.) |
Ref | Expression |
---|---|
3brtr3g.1 | ⊢ (𝜑 → 𝐴𝑅𝐵) |
3brtr3g.2 | ⊢ 𝐴 = 𝐶 |
3brtr3g.3 | ⊢ 𝐵 = 𝐷 |
Ref | Expression |
---|---|
3brtr3g | ⊢ (𝜑 → 𝐶𝑅𝐷) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3brtr3g.1 | . 2 ⊢ (𝜑 → 𝐴𝑅𝐵) | |
2 | 3brtr3g.2 | . . 3 ⊢ 𝐴 = 𝐶 | |
3 | 3brtr3g.3 | . . 3 ⊢ 𝐵 = 𝐷 | |
4 | 2, 3 | breq12i 4895 | . 2 ⊢ (𝐴𝑅𝐵 ↔ 𝐶𝑅𝐷) |
5 | 1, 4 | sylib 210 | 1 ⊢ (𝜑 → 𝐶𝑅𝐷) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1601 class class class wbr 4886 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1839 ax-4 1853 ax-5 1953 ax-6 2021 ax-7 2055 ax-9 2116 ax-10 2135 ax-11 2150 ax-12 2163 ax-13 2334 ax-ext 2754 |
This theorem depends on definitions: df-bi 199 df-an 387 df-or 837 df-3an 1073 df-tru 1605 df-ex 1824 df-nf 1828 df-sb 2012 df-clab 2764 df-cleq 2770 df-clel 2774 df-nfc 2921 df-rab 3099 df-v 3400 df-dif 3795 df-un 3797 df-in 3799 df-ss 3806 df-nul 4142 df-if 4308 df-sn 4399 df-pr 4401 df-op 4405 df-br 4887 |
This theorem is referenced by: syl5eqbrr 4922 syl6breq 4927 ssenen 8422 adderpq 10113 mulerpq 10114 ltaddnq 10131 ege2le3 15222 ovolfiniun 23705 dvfsumlem3 24228 basellem9 25267 pnt2 25754 pnt 25755 siilem1 28278 omndaddr 30269 ogrpaddltrd 30282 |
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