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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 5077 | . 2 ⊢ (𝐴𝑅𝐵 ↔ 𝐶𝑅𝐷) |
5 | 1, 4 | sylib 220 | 1 ⊢ (𝜑 → 𝐶𝑅𝐷) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1537 class class class wbr 5068 |
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 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-rab 3149 df-v 3498 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-sn 4570 df-pr 4572 df-op 4576 df-br 5069 |
This theorem is referenced by: eqbrtrrid 5104 breqtrdi 5109 ssenen 8693 adderpq 10380 mulerpq 10381 ltaddnq 10398 ege2le3 15445 ovolfiniun 24104 dvfsumlem3 24627 basellem9 25668 pnt2 26191 pnt 26192 siilem1 28630 omndaddr 30710 ogrpaddltrd 30722 sn-0ne2 39243 |
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