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| Mirrors > Home > ILE Home > Th. List > infeq1d | GIF version | ||
| Description: Equality deduction for infimum. (Contributed by AV, 2-Sep-2020.) |
| Ref | Expression |
|---|---|
| infeq1d.1 | ⊢ (𝜑 → 𝐵 = 𝐶) |
| Ref | Expression |
|---|---|
| infeq1d | ⊢ (𝜑 → inf(𝐵, 𝐴, 𝑅) = inf(𝐶, 𝐴, 𝑅)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | infeq1d.1 | . 2 ⊢ (𝜑 → 𝐵 = 𝐶) | |
| 2 | infeq1 7302 | . 2 ⊢ (𝐵 = 𝐶 → inf(𝐵, 𝐴, 𝑅) = inf(𝐶, 𝐴, 𝑅)) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → inf(𝐵, 𝐴, 𝑅) = inf(𝐶, 𝐴, 𝑅)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 infcinf 7274 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2214 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-rab 2529 df-uni 3915 df-sup 7275 df-inf 7276 |
| This theorem is referenced by: zsupssdc 10598 xrbdtri 11961 nnmindc 12730 nnminle 12731 lcmval 12760 lcmass 12782 odzval 12939 nninfdclemcl 13199 nninfdclemp1 13201 nninfdc 13204 bdmetval 15365 bdxmet 15366 qtopbasss 15386 hovera 15512 hoverb 15513 hoverlt1 15514 hovergt0 15515 ivthdich 15518 repiecele0 16810 repiecege0 16811 repiecef 16812 |
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