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| Mirrors > Home > MPE Home > Th. List > s1eqd | Structured version Visualization version GIF version | ||
| Description: Equality theorem for a singleton word. (Contributed by Mario Carneiro, 26-Feb-2016.) |
| Ref | Expression |
|---|---|
| s1eqd.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| s1eqd | ⊢ (𝜑 → 〈“𝐴”〉 = 〈“𝐵”〉) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | s1eqd.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | s1eq 14671 | . 2 ⊢ (𝐴 = 𝐵 → 〈“𝐴”〉 = 〈“𝐵”〉) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (𝜑 → 〈“𝐴”〉 = 〈“𝐵”〉) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 〈“cs1 14666 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2734 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2741 df-cleq 2754 df-clel 2837 df-rab 3415 df-v 3455 df-dif 3905 df-un 3907 df-ss 3919 df-nul 4283 df-if 4486 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-br 5108 df-iota 6493 df-fv 6545 df-s1 14667 |
| This theorem is used by: s1prc 14675 ccat1st1st 14700 swrds1 14740 swrdlsw 14741 reuccatpfxs1lem 14819 s2eqd 14938 s3eqd 14939 s4eqd 14940 s5eqd 14941 s6eqd 14942 s7eqd 14943 s8eqd 14944 frmdgsum 18977 psgnunilem5 19627 efgredlemc 19878 vrgpval 19900 vrgpinv 19902 frgpup2 19909 frgpup3lem 19910 pfx1s2 33393 pfxlsw2ccat 33400 ccatws1f1olast 33402 wrdpmtrlast 33541 1arithidomlem2 33954 iwrdsplit 34906 sseqval 34907 sseqf 34911 sseqp1 34914 signsvtn0 35086 signstfveq0 35093 mrsubcv 36097 |
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